Water Flow Switch for Heat Pumps - 20000-360005 - Heater and Spa Parts

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Heat Pump Flow Switch - OEM Universal Water Flow Switch 3/4"

Name: Heat Pump Flow Switch - OEM Universal Water Flow Switch 3/4"
Brand: Fluidra
SKU: FL 20000-360005
Price: 69.00 AUD
Availability: InStock

Price:

$69.00 $86.57

Quantity:

On backorder - but you’re in good hands! Your order will be prioritised and shipped as soon as stock arrives. Thanks to our direct relationships with the manufacturers and importers, we’re the first to receive new stock. Unlike most online stores, we hold physical stock and don’t rely on drop-shipping.

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.

Pool heat pump water flow switch, suitable for many pool and spa heat pumps and other appliances using a 3/4" thread. OEM switch used by most heat pump manufacturers.

Compatible with: Aquark, AstralPool, Chilli, EvoHeat, Eziheat, Fairland, Hayward, HeatSeeker, Madimack, Oasis, Phnix, Pool Set, Raypak, Reltech, Rheem, Sensaheat, SpaNet, Sunlover, Sunrain, TiLab, Zodiac, and many others.

Notes:

Universal style: each manufacturer uses different plugs, so you may need to cut and join the two wires. Polarity does not matter.
The blue plastic shown in photos is only a thread protector and is not used in installation.
Ensure correct orientation and water flow direction so the paddle engages properly.
Most failures are caused by poor water balance, too much water flow, or bromine.
Ensure heat pump water flow is restricted as per manufacturer's specs using a bypass valve setup like this.
Test with a multimeter: Normally Open should close when the paddle is engaged.
Must be installed by a qualified person.

Warranty: 12 months return to base. Excludes failures caused by excessive water flow or corrosive water.

Some part numbers & cross references: 20000-360005 / HPX20000-360005 / 2000-36005 / 040060600000 / B0052400A / JR-B688 / B688

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*, or contact us 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,
Click here or check your order confirmation email for tracking updates.
Shipping T&Cs

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).
Brands: Mention any brands you know or can see.
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.

Heat Pump Flow Switch - OEM Universal Water Flow Switch 3/4"

Description

Heat Pump Flow Switch - OEM Universal Water Flow Switch 3/4"

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General Info - FAQs