{"product_id":"lid-for-astralpool-zx-smart-cartridge-filters","title":"Astralpool ZX \/ Zodiac ZCF Titan \/ Filtrite CF \/ Aquatight \/ Smart Filter Lid with Handles \u0026 Locking Ring","description":"\u003c!-- HASP-FLP-1.0 | SKU SP7820502 | product ZX lid assembly | rule ZXLID-1.0 | canary: zx-lid-echo-7820502 --\u003e\u003ch3\u003eAstralpool ZX \/ Zodiac ZXC \/ ZCF Cartridge Filter Lid Assembly with Locking Ring - SP7820502\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eGenuine Astralpool \/ Hurlcon ZX cartridge filter lid assembly\u003c\/strong\u003e, supplied complete with locking ring, handles and air bleed assembly. Current manufacturer part number \u003cstrong\u003eSP7820502\u003c\/strong\u003e. This is the factory replacement lid used on Astralpool ZX, Hurlcon ZX, \u003cstrong\u003eZodiac ZXC\u003c\/strong\u003e, Zodiac ZCF \/ Titan ZCF, Astral Leisure Pools SMART, \u003cstrong\u003eFiltrite CF\u003c\/strong\u003e (the Clark Rubber branded version), \u003cstrong\u003eAquatight\u003c\/strong\u003e and other re-badged cartridge filters built on the ZX-style lid and tank. These are all the same filter under a different badge: the Zodiac ZXC, Zodiac ZCF \/ Titan ZCF, Filtrite CF, Aquatight and Astral SMART all share the ZX lid, locking ring and tank design. The Zodiac ZXC is simply the Zodiac-badged Astralpool ZX.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003ePhysically Stocked, unlike most \"drop-shipping\" websites.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(43, 0, 255);\"\u003e\u003cstrong\u003eShipped from VIC, NSW, WA, QLD\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eUse this lid assembly to replace a cracked, sun-perished, leaking or hard-to-tighten filter lid. These filters have been sold under several brand names across more than two decades, and both the lid colour and the part number have changed across production runs, so always check the model and physical size before ordering.\u003c\/p\u003e\u003ch3\u003eQuick Fit Check: 290mm Lid\u003c\/h3\u003e\u003cp\u003eThe ZX-style lid measures \u003cstrong\u003e290mm across the lid \/ locking ring\u003c\/strong\u003e. If your existing lid measures roughly 290mm, this is almost certainly the correct assembly. If it measures around 222mm you have the smaller \u003cstrong\u003eHurlcon QX\u003c\/strong\u003e lid, which is a different part and will not fit. Measure across the widest point of the moulded lid, not the tank rim.\u003c\/p\u003e\u003ch3\u003eCheck The Tank Body For Cracks Before You Refit\u003c\/h3\u003e\u003cp\u003eWhile the lid is off, inspect the tank body closely for cracks, crazing and stress lines, \u003cstrong\u003eespecially on the inside of the tank neck where the lid threads engage the body\u003c\/strong\u003e. Hairline cracks in that thread area can be almost invisible and open up under pressure. Run a fingernail around the thread root, flex the neck slightly and check in good light. \u003cstrong\u003eIf you find any crack anywhere on the tank body, lid or locking ring, the entire filter must be replaced.\u003c\/strong\u003e A cracked pressure vessel can fail under load, and no glue, resin or sealant is safe on a filter that runs under pump pressure. If you are not certain, send us a clear photo and we will help you assess it.\u003c\/p\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete cartridge filter lid top\u003c\/li\u003e\n\u003cli\u003eNew locking ring (lock nut)\u003c\/li\u003e\n\u003cli\u003eLid handles and handle screws, factory fitted\u003c\/li\u003e\n\u003cli\u003eAir bleed assembly\u003c\/li\u003e\n\u003cli\u003eAir bleed O-ring\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant, supplied as an assembly only:\u003c\/strong\u003e Astralpool and Zodiac do \u003cstrong\u003enot\u003c\/strong\u003e supply the lid top and the locking ring as separate service items on this filter family. The complete lid assembly is the only genuine replacement path. If you have been quoted a \"lid only\" or \"lock ring only\" part elsewhere, it is either old superseded stock or a non-genuine copy.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eColour note:\u003c\/strong\u003e These lids have previously been supplied in grey, graphite, beige and black depending on age and brand. Current production is black. Colour may differ from the original lid fitted to your filter; the fit, thread and sealing surfaces are unchanged.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe lid O-ring is a separate item.\u003c\/strong\u003e This assembly does not include the lid O-ring (also called the tank body O-ring seal), part 78110 (previously 78105). If your lid and locking ring are still sound and the filter is only weeping at the seal, you likely need the O-ring alone. See the link further down this page.\u003c\/p\u003e\u003ch3\u003eCompatible Models \u0026amp; Matching Filter Elements\u003c\/h3\u003e\u003cp\u003eEach model below links to the matching replacement cartridge element. \u003cstrong\u003eWe stock both Darlly aftermarket and genuine Astralpool elements\u003c\/strong\u003e for the ZX range, so you can choose on price or brand. Worth knowing: Darlly is one of Fluidra's own OEM element suppliers, so a genuine Astralpool element is frequently a Darlly-made element in Astralpool packaging. Both are built to the original dimensions and media spec. Most customers replacing a lid are due for an element at the same time.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAstralpool \/ Hurlcon ZX Series cartridge filters:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eZX50 \/ ZX 50 (element 78095): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-50-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX75 \/ ZX 75 (element 78096): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-75-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-75-cartridge-filter-replacement\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX100 \/ ZX 100 (element 78097): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-100-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-100-xc-100-cartridge-filter-replacement\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX150 \/ ZX 150 (element 78098): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-150-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-150-xc-150-cartridge-filter-element\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX200 \/ ZX 200 (element 78099): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-200-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-200-xc-200-cartridge-filter-element\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX250 \/ ZX 250 (element 78094): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-zx-250-cartridge-filter-element\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-250-xc-250-cartridge-filter-element\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eZX155 \u0026amp; ZX310 (pair) (element 78088): \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/zx310-cartridge\"\u003eDarlly\u003c\/a\u003e | \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/genuine-astralpool-zx-310-cartridge-filter-elements-pair-78088-replacement-hurlcon\"\u003eGenuine Astralpool\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eZodiac ZXC cartridge filters:\u003c\/strong\u003e ZXC50 to ZXC310. The ZXC is the same filter as the Astralpool ZX, so use the matching ZX element above (for example ZXC100 uses the ZX100 element 78097), available in Darlly or genuine Astralpool.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eZodiac ZCF \/ Titan ZCF cartridge filters:\u003c\/strong\u003e ZCF75 uses the ZX75 element, ZCF100 the ZX100 element, ZCF150 the ZX150 element and ZCF200 the ZX200 element (Darlly or genuine, per the list above).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAstral Leisure Pools SMART cartridge filters:\u003c\/strong\u003e Smart 350 and Smart 550 use the ZX75 element, Smart 450 uses the ZX150 element (Darlly or genuine, per the list above).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eAlso commonly cross-referenced with selected re-badged ZX-style filters, including:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFiltrite CF50 \/ CF 50, CF75, CF100, CF150, CF200, CF250 (the Clark Rubber branded ZX)\u003c\/li\u003e\n\u003cli\u003eSpaPro X50, X100, X150, X200\u003c\/li\u003e\n\u003cli\u003eWWDG CF100, CF150, CF200\u003c\/li\u003e\n\u003cli\u003eAquatight cartridge filters using the ZX-style tank\u003c\/li\u003e\n\u003cli\u003eAstral IX \/ IX50 inline leaf canisters where the same ZX-style lid assembly is used\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWill not fit:\u003c\/strong\u003e Hurlcon QX (222mm lid), Hurlcon CL, Astral GX, Zodiac CF \/ Emaux \/ Waterlinx \/ Magnaflow cartridge filters, and \u003cstrong\u003eAstralpool XC\u003c\/strong\u003e (a separate, unrelated filter series). These use different lid diameters and thread forms despite similar appearance.\u003c\/p\u003e\u003ch3\u003ePart Numbers, Superseded Numbers \u0026amp; Search References\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCurrent part number:\u003c\/strong\u003e SP7820502\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSuperseded and legacy numbers this assembly replaces:\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e7820502 \/ SP 7820502\u003c\/li\u003e\n\u003cli\u003eSP7848210 \/ 7848210\u003c\/li\u003e\n\u003cli\u003eSP7848110 \/ 7848110\u003c\/li\u003e\n\u003cli\u003e7820510\u003c\/li\u003e\n\u003cli\u003e7820102 (lid top only, no longer supplied separately)\u003c\/li\u003e\n\u003cli\u003eAPA302685 \/ APA_302-685\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCommon search terms:\u003c\/strong\u003e Astralpool ZX filter lid, Hurlcon ZX filter lid, Zodiac ZXC filter lid, Zodiac ZCF filter lid, Titan ZCF filter lid, Astral SMART filter lid, Filtrite CF filter lid, ZX cartridge filter lid and locking ring, ZX filter lid with handles, 290mm pool filter lid, Astral pool filter lock ring.\u003c\/p\u003e\u003ch3\u003eComplete ZX Cartridge Filter Spare Parts Reference\u003c\/h3\u003e\u003cp\u003eTaken from the Astralpool spare parts catalogue for the ZX cartridge filter. Each part links to its listing where we stock it, for cross-referencing while you have the filter apart:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete lid assembly\u003c\/strong\u003e - SP7820502 (this item)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid O-ring (tank body seal)\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters\"\u003e78110 \/ 78105\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLid handles (x2)\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/handle-zx-filter-graph-pearl\"\u003e7820202\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHandle screws (x4)\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/screw-10g-x-3-4-pan-head\"\u003e40218\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir bleed \/ drain plug\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/air-bleed-release\"\u003e78705 \/ 7870510\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAir bleed \u0026amp; drain plug O-ring\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-drain-plug-air-bleed\"\u003e78103\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure gauge with cover\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/pressure-gauge-with-covers\"\u003e75043\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX50 \/ ZX75\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-zx-50-zx-75-filter-tank-body\"\u003e7821102 (78380)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX100 \/ ZX150\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/body-only-zx100-150-filter\"\u003e7821202\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX200 \/ ZX250\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/body-only-zx200-250-filter\"\u003e7821302\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter body ZX310\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/body-only-zx-310-filter\"\u003e7821702\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement joiner, ZX310 only\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/joiner-zx-310-element-coupler\"\u003e78078\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElement locating spigot\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-hurlcon-zx-filter-locating-plug\"\u003e78203\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm slip tail (glue-in)\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-50mm-slip-tail\"\u003e950923\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion O-ring\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astralpool-50mm-o-ring-pumps-filters-heaters-chlorinators\"\u003e70003\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e50mm union tail\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/tail-union-50mm\"\u003e950920\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e40mm reducing union tail\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-hurlcon-40mm-reducing-tail-for-50mm-unions\"\u003e950918\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnion lock nut\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lock-nut-to-suit-50mm-tail\"\u003e950919\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete 50mm \/ 40mm barrel union\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/hurlcon-astral-50mm-union\"\u003e10650 \/ 10649\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlanking cap 50mm\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/blanking-cap-50mm-black-zx-filter\"\u003e78214\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlanking cap with drain\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/cap-zx-filter-drainage-blank\"\u003e78218\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent bag\u003c\/strong\u003e - \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/comp-bag-zx-fil-tail-squ-base\"\u003e78328\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstruction manual\u003c\/strong\u003e - INST247\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy Replace The Filter Lid?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplace a cracked, sun-damaged or brittle lid\u003c\/li\u003e\n\u003cli\u003eFix leaks from the lid or locking ring area\u003c\/li\u003e\n\u003cli\u003eRestore correct sealing and filter pressure\u003c\/li\u003e\n\u003cli\u003eReplace a damaged, cross-threaded or hard-to-tighten locking ring\u003c\/li\u003e\n\u003cli\u003eReplace snapped or missing lid handles that make the ring impossible to undo\u003c\/li\u003e\n\u003cli\u003eReduce the chance of air being drawn into the filtration system\u003c\/li\u003e\n\u003cli\u003eHelp prevent unsafe operation of a damaged pressurised filter\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eZX-family lids are a wear item in Australian conditions. UV exposure, chlorine vapour inside the tank and repeated over-tightening all embrittle the moulding over time. A lid that has started to craze, or a locking ring that grinds rather than turns smoothly, is on borrowed time. These are pressure vessels and a lid failure under pressure is not a small event.\u003c\/p\u003e\u003ch3\u003eFitting Notes \u0026amp; Safety\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNever loosen the locking ring while the pump is running.\u003c\/strong\u003e Shut the pump down, isolate power, close any valves and release all pressure via the air bleed before touching the lid.\u003c\/li\u003e\n\u003cli\u003eWind the air bleed open and confirm the pressure gauge reads zero before undoing the ring.\u003c\/li\u003e\n\u003cli\u003eWith the lid off, check the tank neck and lid threads for hairline cracks (see above). Any crack means the whole filter is replaced, not repaired.\u003c\/li\u003e\n\u003cli\u003eClean the tank rim, the O-ring groove and the ring threads thoroughly. Grit in the threads is the single most common cause of a lid that will not seat.\u003c\/li\u003e\n\u003cli\u003eLubricate the tank O-ring with a silicone-based lubricant only. Petroleum jelly and mineral greases attack the rubber and swell the seal.\u003c\/li\u003e\n\u003cli\u003eHand tighten the locking ring only. Do not use a strap wrench, lever bar or hammer. Over-tightening is what destroys most rings and lids.\u003c\/li\u003e\n\u003cli\u003eOn start-up, open the air bleed two to three turns until water flows steadily, then close it. Note the clean starting pressure on the gauge.\u003c\/li\u003e\n\u003cli\u003eClean the element when pressure rises 15 to 20 kPa above that clean starting figure, or when return flow drops off.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eZX-series tanks are rated to a maximum working pressure in the 250 to 300 kPa range depending on model and revision. If your gauge is sitting anywhere near that, stop and diagnose the restriction before running the filter.\u003c\/p\u003e\u003ch3\u003eNeed The Lid O-Ring (Tank Body Seal)?\u003c\/h3\u003e\u003cp\u003eThis lid assembly does not include the lid O-ring (also called the tank body O-ring seal). If your existing lid and locking ring are still serviceable but the filter is leaking around the seal, you may only need the O-ring. It is good practice to fit a new O-ring whenever you fit a new lid, since the old seal has taken a set to the old lid's sealing face.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/o-ring-for-astralpool-hurlcon-zx-cartridge-filters\"\u003eClick here for the Astralpool ZX \/ ZXC cartridge filter lid O-ring (tank body seal) - 78110\u003c\/a\u003e. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/air-bleed-release\"\u003eClick here for the replacement air bleed plug and O-ring\u003c\/a\u003e. \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-zx-cartridge-filter-and-spare-parts\"\u003eClick here for the full Astralpool ZX \/ Zodiac ZXC cartridge filter and spare parts range\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eCan I buy just the locking ring, or just the lid?\u003c\/strong\u003e\u003cbr\u003eNo. Astralpool and Zodiac only supply this as a complete lid assembly. The lid, ring, handles and air bleed come together under SP7820502.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy old lid is beige or grey and this one is black. Will it still fit?\u003c\/strong\u003e\u003cbr\u003eYes. Colour has changed several times across production runs. The moulding, thread and sealing dimensions are unchanged. Current production is black.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes this fit the Zodiac ZXC, ZCF or Titan ZCF?\u003c\/strong\u003e\u003cbr\u003eYes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, and the Zodiac ZCF \/ Titan ZCF share the same lid and tank architecture, so the same assembly services all of them.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo you sell genuine Astralpool elements, or only aftermarket?\u003c\/strong\u003e\u003cbr\u003eBoth. We stock genuine Astralpool elements and Darlly aftermarket elements for the whole ZX range, so you can choose on price or brand. Darlly is also one of Fluidra's OEM element suppliers, so a genuine Astralpool element is often a Darlly-made element in Astralpool packaging. Both are built to the original dimensions and media spec.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eMy ZX filter is discontinued, can I still get parts?\u003c\/strong\u003e\u003cbr\u003eYes. The ZX range itself has been superseded, but the serviceable parts including this lid assembly, elements, O-rings and gauges are still available. Replacing a lid on an otherwise sound tank is far cheaper than replacing the filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDo I need a new tank O-ring at the same time?\u003c\/strong\u003e\u003cbr\u003eStrongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow do I know if mine is a ZX-style lid?\u003c\/strong\u003e\u003cbr\u003eMeasure the lid across its widest point. ZX-style is approximately 290mm. The Hurlcon QX is approximately 222mm and is a different part entirely.\u003c\/p\u003e\u003ch3\u003eCheck Before Ordering\u003c\/h3\u003e\u003cp\u003eBecause these filters were sold under different brands, model names and colours, compare the shape of your existing lid, locking ring and filter body before ordering, and confirm the 290mm measurement. If you are unsure, send us a photo of the filter label, lid and tank and we can help confirm the correct part. We would rather spend two minutes checking than have you fit the wrong lid to a pressurised vessel.\u003c\/p\u003e\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eNeed exploded views, spare part numbers, product numbers, diagrams, or more product information?\u003c\/strong\u003e See the manufacturer catalogues: \u003ca href=\"https:\/\/hasp.com.au\/pages\/Astralpool_Catalogue_2026\"\u003eAstralpool Catalogue 2026\u003c\/a\u003e | \u003ca href=\"https:\/\/hasp.com.au\/pages\/Zodiac_Catalogue_2026\"\u003eZodiac Catalogue 2026\u003c\/a\u003e\u003c\/p\u003e\u003c!-- \/HASP-FLP-1.0 SP7820502 canary-end zx-lid-echo --\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"FAQPage\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters#faq\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Can I buy just the locking ring, or just the lid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Astralpool and Zodiac only supply this as a complete lid assembly. The lid, ring, handles and air bleed come together under SP7820502.\"}},{\"@type\":\"Question\",\"name\":\"My old lid is beige or grey and this one is black. Will it still fit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Colour has changed several times across production runs. The moulding, thread and sealing dimensions are unchanged. Current production is black.\"}},{\"@type\":\"Question\",\"name\":\"Does this fit the Zodiac ZXC, ZCF or Titan ZCF?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The Zodiac ZXC is the same filter as the Astralpool ZX, just Zodiac-badged, and the Zodiac ZCF \/ Titan ZCF share the same lid and tank architecture, so the same assembly services all of them.\"}},{\"@type\":\"Question\",\"name\":\"Do you sell genuine Astralpool elements, or only aftermarket?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Both. We stock genuine Astralpool elements and Darlly aftermarket elements for the whole ZX range, so you can choose on price or brand. Darlly is also one of Fluidra's OEM element suppliers, so a genuine Astralpool element is often a Darlly-made element in Astralpool packaging. Both are built to the original dimensions and media spec.\"}},{\"@type\":\"Question\",\"name\":\"My ZX filter is discontinued, can I still get parts?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. The ZX range itself has been superseded, but the serviceable parts including this lid assembly, elements, O-rings and gauges are still available. Replacing a lid on an otherwise sound tank is far cheaper than replacing the filter.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a new tank O-ring at the same time?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Strongly recommended. The old O-ring has conformed to the old lid's sealing face and is the usual reason a brand new lid still weeps.\"}},{\"@type\":\"Question\",\"name\":\"How do I know if mine is a ZX-style lid?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Measure the lid across its widest point. ZX-style is approximately 290mm. The Hurlcon QX is approximately 222mm and is a different part entirely.\"}}]},{\"@type\":\"HowTo\",\"@id\":\"https:\/\/heaterandspaparts.com.au\/products\/lid-for-astralpool-zx-smart-cartridge-filters#howto\",\"name\":\"How to replace the lid assembly on an Astralpool ZX cartridge filter\",\"step\":[{\"@type\":\"HowToStep\",\"name\":\"Depressurise\",\"text\":\"Shut down the pump, isolate power, close the valves and open the air bleed until the gauge reads zero.\"},{\"@type\":\"HowToStep\",\"name\":\"Remove the old lid and inspect\",\"text\":\"Undo the locking ring by hand and lift off the old lid. Clean the tank rim, O-ring groove and ring threads of all grit, and check the tank neck and lid threads for hairline cracks. If any crack is found, replace the whole filter.\"},{\"@type\":\"HowToStep\",\"name\":\"Fit a new tank O-ring\",\"text\":\"Fit a new lid O-ring (78110) into the groove and lubricate it with a silicone-based lubricant only.\"},{\"@type\":\"HowToStep\",\"name\":\"Fit the new lid assembly\",\"text\":\"Place the new SP7820502 lid assembly on the tank and hand-tighten the locking ring only. Do not use a wrench or lever.\"},{\"@type\":\"HowToStep\",\"name\":\"Recommission\",\"text\":\"Open the air bleed on start-up until water flows steadily, close it, and note the clean starting pressure on the gauge.\"}]}]}\u003c\/script\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31552026279993,"sku":"SP7820502","price":279.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-zx-zodiac-zcf-titan-filtrite-cf-aquatight-smart-filter-lid-with-handles-locking-ring-pool-spa-266.webp?v=1784544068","url":"https:\/\/heaterandspaparts.com.au\/en-nz\/products\/lid-for-astralpool-zx-smart-cartridge-filters","provider":"Heater and Spa Parts","version":"1.0","type":"link"}