73995 Watkins Pressure Switch Kit with Cable

The 73995 Watkins® Pressure Switch Kit with Cable is an essential replacement part for monitoring water flow and ensuring safe heater operation in many Hot Spring®, Caldera®, and other Watkins®-manufactured spas. This pressure switch helps prevent heater damage by shutting off power if there isn’t adequate water flow, protecting your spa from overheating or dry-fire conditions.

If your spa displays heater-related error codes or struggles to maintain proper temperature, replacing a worn or faulty pressure switch with the 73995 kit can help restore system reliability and safety.

Designed for Reliable Spa Heater Protection

• OEM Watkins® pressure switch for Hot Spring®, Caldera®, and other models

• Includes 24-inch cable for plug-and-play compatibility

• Threaded mounting for easy installation

• Automatically monitors water flow to the heater

• Designed to prevent heater operation during low or no flow conditions

• Helps eliminate dry-fire errors and heater trips

Prevent Costly Heater Damage with the 73995 Kit

The pressure switch acts as a safety interlock for your spa’s heating element. If water isn’t flowing through the heater chamber at the correct rate, the 73995 switch prevents the heater from turning on. This protects both the heater and your spa’s control board.

Replacing a faulty switch is a simple and affordable way to troubleshoot flow-related heating problems and restore peace of mind.

Easy Installation and Compatibility

The 73995 switch threads directly into the heater housing and plugs into the control board using the included cable. Most spa owners can complete this replacement in minutes with basic tools. Always shut off power before servicing your spa.

Verify compatibility with your specific make and model. This part is commonly used in Hot Spring® and Caldera® spas from the mid-1990s to early 2000s, but model usage may vary.

Frequently Asked Questions – 73995 Watkins Pressure Switch Kit

What does the 73995 pressure switch do?

It monitors water flow to the heater and shuts off power if flow is insufficient, helping protect against heater damage.

What spas is this switch compatible with?

This switch is designed for use in many Hot Spring®, Caldera®, and other Watkins® spas. Confirm fitment based on your spa model and year.

What are symptoms of a failing pressure switch?

Common signs include heater not turning on, persistent heater error codes, or the spa failing to heat properly even with good flow.

Can I install the 73995 switch myself?

Yes. It’s a straightforward swap with basic tools. Disconnect the power, remove the old switch, install the new one, and reconnect the wiring harness.

Does this come with everything needed?

Yes. The kit includes the switch, cable, and threaded mount. You may reuse the original o-ring if it’s in good condition, or replace it for best results.

How often does a spa pressure switch need to be replaced?

Lifespan varies, but switches often last 3–7 years depending on usage, water quality, and maintenance practices.

Get the 73995 Watkins Pressure Switch Kit Today

Keep your spa heater protected and running smoothly with the 73995 Watkins Pressure Switch Kit with Cable. This easy-to-install component restores essential safety functions and helps prevent costly repairs. Order now for fast shipping and expert support.