Tecmark / Hydroquip Water Pressure Switch – Suits Zodiac, Astral Pool, Pentair, Raypak & More

Tecmark / Hydroquip Water Pressure Switch – R0457002

The Tecmark / Hydroquip Water Pressure Switch is a widely used replacement part for gas pool and spa heaters, spa controllers, and other water-related equipment. Compatible across a broad range of brands and models, this switch features a 1/8" NPT threaded connection and adjustable pressure settings to suit your specific system requirements.

This switch is commonly interchangeable across brands and may appear under different model numbers — if your heater uses a 1/8" NPT pressure switch, this is very likely the correct replacement.

Compatible With

• Zodiac JXI gas heaters
• Astral Pool IXI gas heaters
• Pentair Mastertemp heaters
• Waterco Turbotemp heaters
• Sta-Rite Max-E-Therm heaters
• Raypak heaters
• Many other gas heaters and spa controllers using a 1/8" NPT pressure switch

Key Features

• 1/8" NPT threaded connection
• Adjustable pressure settings
• Widely interchangeable across major pool heater brands
• Suits gas heaters and spa controllers
• SKU: R0457002

Frequently Asked Questions

What does a water pressure switch do in a pool heater?
The water pressure switch detects whether sufficient water is flowing through the heater before allowing it to ignite. This protects the heat exchanger from damage caused by operating without adequate water flow. A faulty pressure switch can prevent the heater from firing even when water flow is normal.

How do I know if my pressure switch needs replacing?
Common signs include the heater failing to ignite despite normal water flow, displaying a flow or pressure fault code, or the heater cycling on and off erratically. If water flow and filtration are confirmed adequate, the pressure switch is a common cause.

Is this switch compatible with my heater?
This switch suits Zodiac JXI, Astral IXI, Pentair Mastertemp, Waterco Turbotemp, Sta-Rite Max-E-Therm, and Raypak heaters, among others. If your heater uses a 1/8" NPT pressure switch, this is very likely the correct replacement. Call us on 02 9137 8914 to confirm compatibility with your specific model.

Can I install this pressure switch myself?
Pressure switch replacement on a gas heater involves gas appliance components and should be carried out by a licensed gas fitter or qualified pool technician. Call us on 02 9137 8914 for advice or a referral.