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. Engineered to detect adequate water pressure within the circulation system, this switch prevents the heater from operating under low-flow conditions, protecting your equipment from overheating and damage. It is compatible with various Watkins-built spa brands including Hot Spring, Caldera, Hot Spot, and Solana models (2006 and newer).

• Pressure Switch Watkins
• Water Pressure Detection — Monitors system pressure to confirm sufficient water flow before allowing heater activation.
• Heater Protection — Prevents overheating by disabling the heater in low or no-flow conditions.
• Direct Replacement Fit — Designed to meet OEM specifications for straightforward installation and reliable sealing.
• Durable Construction — Built with robust materials (metal thread) to withstand heat, moisture, and spa chemicals.
• Reliable Safety Component — Ensures proper communication with the control system for consistent and safe operation.
• Compatibility — Compatible with various Watkins spa brands including Hot Spring, Caldera, Hot Spot, and Solana models (2006+). Always verify your spa model and part number before ordering.
• Free shipping
• Part no. 5-20-0035 (also known as 73995)

Why choose this product?
This pressure switch is a critical safety device for your spa system. Replacing a faulty unit restores proper heating operation, helps eliminate flow-related errors, and protects your heater from damage caused by insufficient water circulation or pressure.