Tecmark Vacuum Switch [Cal Spas] [Replaces V4001P-DX] (V4003P-DX) waterlevelers Designed for compatible inlet fitting

Designed for compatible inlet fitting flow control

The Hayward exhaust-side gasket kit is designed for compatible Low NOx heater applications where the sealing components on the exhaust side need renewal

A part like this is useful because it helps support the connection of the sight glass assembly within the plumbing line

75 horsepower pump applications

The 600889B is a practical service part when a compatible Raypak heater needs an auto reset 13-B thermostat to restore dependable thermal-control support

Tecmark Vacuum Switch [Cal Spas] [Replaces V4001P-DX] (V4003P-DX) waterlevelers Designed for compatible inlet fittingThe Tecmark vacuum switch is designed for compatible Cal Spas applications and serves as a replacement for V4001P DX. Vacuum switches are useful because they help the system respond appropriately to vacuum conditions that are part of normal operating or protection logic. This replacement is especially useful when the original switch is no longer sensing vacuum correctly, becomes intermittent, or has failed entirely. Using the designated replacement