The Watkins Pressure Switch (5-20-0035) is a high-quality replacement safety component designed to ensure proper operation of your spa's heating system, detecting adequate water pressure before allowing heater activation.

Specifications:

• OEM part number: 5-20-0035 (also known as 73995)
• Manufacturer: Watkins Wellness
• Function: Monitors system pressure to confirm sufficient water flow before allowing heater activation
• Protection: Prevents overheating by disabling the heater in low or no-flow conditions
• Construction: Durable, robust materials (metal thread) built to withstand heat, moisture, and spa chemicals

Fits/replaces:

• Watkins-built spa brands including Hot Spring, Caldera, Hot Spot, and Solana models (2006 and newer)
• Direct OEM replacement for part 5-20-0035 (also known as 73995)

Common signs you need this part:

• Heater fails to activate despite adequate water flow
• Flow-related fault codes on the control panel
• Spa functions interrupted intermittently during operation

Returns & installation: Please verify your spa model and part number before ordering, as compatibility varies across Watkins-built brands. Installation should be performed by a qualified spa technician with power and water disconnected.

FAQ

Q: What spa brands is this switch compatible with?
A: It's compatible with various Watkins-built spa brands including Hot Spring, Caldera, Hot Spot, and Solana models from 2006 onward.

Q: What does this pressure switch protect against?
A: It prevents the heater from operating under low-flow conditions, protecting your equipment from overheating and damage.