{"product_id":"hurlcon-astralpool-pump-check-one-way-valve","title":"Astralpool Pump Check Valve Assembly","description":"\u003c!-- HASP-FLP-1.0 | SKU 598770 | canary: checkvalve-echo --\u003e\n\u003ch3\u003eAstralpool Pump Check Valve Assembly 598770\u003c\/h3\u003e\n\u003cp\u003eGenuine Astralpool \/ Hurlcon in-pump check valve, part number \u003cstrong\u003e598770\u003c\/strong\u003e, for the E, CX, TX and CTX pumps. Suits both 40mm and 50mm unions. It prevents impeller \"spin-off\" — water rushing backwards through the pump when it switches off — and helps the pump hold prime between cycles.\u003c\/p\u003e\n\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\n\n\u003ch3\u003eImportant Notes Before Ordering\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSupplied only in the current style shown in the \u003cem\u003efirst\u003c\/em\u003e image. The older black-fitting style (\u003cem\u003esecond image\u003c\/em\u003e) is discontinued; the new version suits most applications.\u003c\/li\u003e\n\u003cli\u003eIn some 40mm-tail installations the flap will not fully open, and there is no way to know until you try. If it does not open fully, fit a \u003ca href=\"https:\/\/heaterandspaparts.com.au\/pages\/search-results-page?q=jandy%20check%20valve\" rel=\"noopener\" target=\"_blank\"\u003eseparate check valve\u003c\/a\u003e above the pump instead.\u003c\/li\u003e\n\u003cli\u003eWhere possible we recommend a \u003ca href=\"https:\/\/heaterandspaparts.com.au\/pages\/search-results-page?q=hayward%20check%20valve\" rel=\"noopener\" target=\"_blank\"\u003egood-quality check valve\u003c\/a\u003e fitted to the pump outlet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eA Note on Check Valves and Safety Systems\u003c\/h3\u003e\n\u003cp\u003eAstralpool cautions that a check valve can interfere with the operation of certain Suction Vacuum Release Systems (SVRS). If your pool has an SVRS fitted, review its manual before installing an in-line check valve. On pumps installed below water level, isolation (check) valves on both suction and return lines are what let you service the pump without draining the lines.\u003c\/p\u003e\n\n\u003ch3\u003eRelated Parts\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e40065\u003c\/strong\u003e — basket (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/astralpool-hurlcon-pump-strainer-basket-tx-cx-ctx-p280-eco-e-series\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e70006\u003c\/strong\u003e — lid o-ring (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/lid-o-ring-for-astralpool-hurlcon-pumps-ctx-cx-tx\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e75508 \/ PS3868\u003c\/strong\u003e — mechanical seal (\u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/3-4-mechanical-seal\"\u003ebuy here\u003c\/a\u003e)\u003c\/li\u003e\n\u003cli\u003eImpeller — sized to your model, see the \u003ca href=\"https:\/\/heaterandspaparts.com.au\/products\/impeller-ctx-280-pump-cx280\"\u003eCTX impeller range\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eManufacturer Catalogues, Diagrams \u0026amp; Part Numbers\u003c\/h3\u003e\n\u003cp\u003eNeed exploded views, spare part numbers, product numbers or diagrams? 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\n\n\u003cp\u003e\u003cem\u003eCommon search terms: Astralpool 598770, CTX check valve, in-pump check valve, Astral Hurlcon non-return valve, pump anti-spin-off valve, 40mm 50mm check valve.\u003c\/em\u003e\u003c\/p\u003e\n\u003c!-- HASP-FLP-1.0 end | canary: checkvalve-echo --\u003e","brand":"Astralpool","offers":[{"title":"Default Title","offer_id":31444399718457,"sku":"598770","price":27.0,"currency_code":"NZD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/5253\/files\/astralpool-pump-check-valve-assembly-pool-parts-679.webp?v=1784679764","url":"https:\/\/heaterandspaparts.com.au\/en-nz\/products\/hurlcon-astralpool-pump-check-one-way-valve","provider":"Heater and Spa Parts","version":"1.0","type":"link"}