Tecmark Air Switch [TBS306 SPNO 25A Thd 90°] (TBS306A) is a Tecmark air switch for compatible pneumatic control systems used in spa, bath, pool, and equipment applications. Air switches respond to pressure from an air button and convert that signal into electrical switching for supported devices.This latching switch is useful when a pump, blower, light, or other controlled device no longer responds correctly to the air button. Because switch ratings and contact configurations vary, confirm amperage, pole/throw configuration, terminal style, and operating action before replacement. Tecmark pneumatic air switch replacement Designed for compatible air-button control systems Supports equipment activation through air pressure signaling Latching operation for matching control requirements Verify electrical rating and switch configuration before installation
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