Tecmark Low Volume Switch (TBS311A) aquacal A tube like this is

A tube like this is useful because it helps communicate system pressure conditions to the switch

That makes routine service more direct and easier to complete correctly

Installed in the proper Gemini Plus setup

the filtration system can no longer perform as steadily as it should

Helps restore dependable user control function

Tecmark Low Volume Switch (TBS311A) aquacal A tube like this isTecmark 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