Tecmark Low Volume Switch (TBS311A) safety The SPX1620Z1MNS is a practical

The SPX1620Z1MNS is a practical replacement for compatible Hayward systems that need renewed motor performance and cleaner long-term circulation support

When an air control no longer feels easy to use

Designed for compatible drain-point sealing applications

Useful when replacing a damaged or worn impeller

Tecmark Low Volume Switch (TBS311A) safety The SPX1620Z1MNS is a practicalTecmark Low Volume Switch (TBS311A) is a Tecmark replacement air switch or control switch component for compatible spa, bath, and equipment control applications. These switches are commonly used where pneumatic control, latching action, momentary operation, or sequencing functions are part of the system design. Replacing a worn or failed switch can help restore dependable response from pumps, blowers, lights, or other connected equipment when the