Balboa Gecko Spa Heater Gasket O-Ring Seal - Pair Heater Parts

Balboa Gecko Spa Heater Gasket O-Ring Seal - Heater and Spa Parts

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Pair - 74mm OD "50mm" Balboa / Gecko / Aeware Spa Heater Gasket O-Ring Seal - Pair

Name: Pair - 74mm OD "50mm" Balboa / Gecko / Aeware Spa Heater Gasket O-Ring Seal - Pair
Brand: SXSC
SKU: 711-4031 21619 B-21619 (x2)
Price: 10.00 AUD
Availability: InStock

Price:

$10.00 $22.00

Quantity:

Tax Included. Shipping over $149 FREE or calculated at checkout.

About Us: We keep physical stock in Vic, NSW, Qld, WA unline most online stores. We offer sustainable, value-based pricing that reflects our stock and support. We don’t price match but stay competitive for the long term.

PAIR (Two) genuine Balboa / Gecko ribbed heater o-ring gaskets. These seals fit all Balboa 2″ flo-thru heater tubes – including M7 and non-M7 heaters – plus most Gecko, AEware, Hydroquip, Aquatemp, RMF, Spa Builders, and other spa packs that use the standard 2″ heater union. Material colour may vary (black/white/clear).

These seals fit just about every Balboa control system and heater tube ever made, except GS100 & GS200. If your spa has a Balboa VS, GS, GL, EL, BP, LE, Value or metal-box control pack with a 2″ heater, these are the correct gaskets.

Replace every few years or after heavy chemical imbalance to prevent leaks.

Compatibility (Grouped for clarity)

Balboa control systems: VS Series, GS Series (except GS100 & GS200), GL Mach 3, EL Mach 3, BP Series (BP200/501/601/2100/2600/BP7/BP8), LE Series, Value & older metal-box Balboa packs.
Balboa heater tubes (2″ flo-thru): 58061, 58063, 58083, 58107, 58118, 58122, 58141, 58143, 58145, 58215, 58301, 58306, 58450, 58454, 58433, and all standard 15″ × 2″ Balboa M7 and non-M7 heaters.
Additional heater assemblies: Balboa Auxiliary Slave Heater, SCS 501, 55626, 56911, 55614, 50139, 50096, 58053 and other 2″ flo-thru style heaters.
Gecko / AEware: in.yj, in.ye, in.xe, in.xm, in.xm2, in.xl, SSPA, MSPA, Microspa, and most Gecko AEware 2″ heater tubes.
SpaPro & WWDG Control Systems: All including SpaPro X1, SpaPro X2, SpaPro X3, and WWDG W1, W3, Wx systems.
Other brands using 2″ heater unions: Hydroquip, Pentair, Aquatemp, RMF, Spa Builders, Spa-Quip (flo-thru conversions), and many OEM re-badged systems.

Note: Commonly referred to as “50mm” or “2″ heater gaskets”. The 50mm refers to plumbing size – the actual gasket is larger and measures 74mm outside diameter.

Measurements

Outside Diameter: approx. 74mm
Inside Diameter: 53mm
Total Thickness: 6mm
Raised rib (square-edge side), centre-to-centre: 63mm

Replaces / May be stamped as

711-4031
21619
B-21619 / B21619
RGASHEA50M
PL-10170

Associated Numbers:

26-58083-K, 26-58118-K, 50mm, 50096, 50139, 53475, 53475-01, 53883, 53883-01, 53883-02, 53883-03, 53883-04, 53885, 53885-01, 53885-02, 53885-03, 53885-04, 53996, 54282, 54282-01, 54282-02, 54282-03, 54282-04, 54297, 54297-01, 54297-02, 54297-03, 54305, 54305-01, 54305-02, 54346, 54346-01, 54406, 54476, 54476-01, 54479, 54479-01, 54479-02, 54501, 54501-01, 54503, 54503-01, 54699, 54705, 54850, 54850-01, 55085, 55085-01, 55087, 55087-01, 55496, 55496-01, 55565, 55595, 55595-01, 55614, 55626, 55866, 55866-01, 55890, 56002, 56002-01, 56002-02, 56002-03, 56002-04, 56004, 56004-01, 56012, 56012-01, 56012-02, 56220, 56282, 56290, 56290-01, 56911, 58053, 58061, 58061-TUV, 58063, 58083, 58107, 58118, 58122, 58141, 58143, 58145, 58215, 58300 Series, 58301, 58306, 58433, 58450, 58454, 711-4031, 21619, B-21619, B21619, PL-10170, RGASHEA50M, Auxiliary Slave Heater, SCS 501

Common search terms: o-ring, oring, Balboa heater gasket, 50mm spa heater seal, Gecko heater gasket, spa heater o-ring, 2 inch heater union seal.

General Info - FAQs

Shipping & Pick-Up Info

Enjoy Free Road Shipping on most orders over $149* (bulky or dangerous goods excluded — your cart will show this).
Need it fast? Select Express Post for delivery in 1–5 business days*. Please contact us first to confirm stock for urgent orders.
Pick-ups are available from our Carrum Downs, VIC store. Please order online, and we’ll notify you when it’s ready. Our NSW, QLD, and WA warehouses ship orders only.
View our Shipping Info & Policy here,
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I'm not sure what I need. Can you help?

Please try our Search first— try entering any part numbers, models, or measurements. There’s a good chance you’ll find it! Still can't find it?

We’re here to help. For the fastest, most accurate response, please include:

Clear photos of the part itself and where it sits in the spa (control box, touchpad, pump label, filters, etc.).
Measurements (e.g. thread size, pipe OD/ID, heater kW rating, pump label details, etc).
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Error codes or symptoms you’ve noticed, plus anything you’ve already tried.
Technical Help - For technical assistance, please email us with as much detail as possible. Keep in mind we are limited in what advice we can provide on electrical and gas components, as all work must be carried out by a qualified technician.

About Heater & Spa Parts (HASP)

Heater & Spa Parts has Australia’s largest range of spa spare parts, supplies, and pool heaters from top brands. We're a real store with real stock—not just another drop-shipper.

We're 100% Australian-owned and operated, with warehouses in VIC, NSW, QLD & WA, and we ship faster than anyone. We have a physical retail store at 10 Industry Blvd, Carrum Downs, Vic.

As authorised dealers and service agents for major brands, and former employees of leading manufacturers, we know our stuff.

We're proud SPASA and Master Plumbers members, working closely with top manufacturers and distributors.

With over 50,000 parts across 5,000+ product lines, we stock everything from filters, pumps, jets, chemicals, heaters, touchpads, control panels, and more—plus manuals and expert info to help you out.

Parts & Brands

We stock and supply parts from all the major brands: Aeware, AquaFlo, Astralpool, Balboa, CG Air, CMP, Darlly, Davey, Del Ozone, Edgetec, Fluidra, Gecko, Hurlcon, Jandy, LX, Madimack, Magnum, Pentair, Raypak, Rheem, SpaNet, Spa-Quip, SpaPro, Waterco, Waterway, Zodiac—and many more.

Our parts are compatible with popular spa brands including Alpine, Arctic, Artesian, Bullfrog, Caldera, Cyclone, Decina, Dimension One, Endless®, Fisher, HotSpring, Just Spas, LA Spas, Maax, Monarch, Oasis, Sapphire, Signature, Sundance, Vortex® and dozens more.

Please note: Images are for illustration only—actual products may vary. Some OEM parts may arrive without packaging or manuals.

Where available, manuals are on the product page or provided on request.

All parts must be installed by qualified professionals. Electrical and gas work must be carried out by licensed technicians.

Warranty & Return Info

Warranty Info: As an authorised service agent, our process is quick and straightforward. See our Warranty page for details.

Returns Policy: 30-day returns on many products, excluding electrical and some other items. See our returns policy here.

Pair - 74mm OD "50mm" Balboa / Gecko / Aeware Spa Heater Gasket O-Ring Seal - Pair

Description

Compatibility (Grouped for clarity)

Measurements

Replaces / May be stamped as

Associated Numbers:

Pair - 74mm OD "50mm" Balboa / Gecko / Aeware Spa Heater Gasket O-Ring Seal - Pair

General Info - FAQs