The TBS‑317 is a latching air switch designed for spa and hot tub control systems. Made by Tecmark (also sold under Senasys and similar names), it provides safe, remote air‑activated on/off switching for electrical equipment like pumps, blowers, lights, and other devices.

• Tecmark 20A DPDT Latching Air Switch – TBS‑317
• Reliable Control Logic — Double Pole Double Throw (DPDT) design offers alternate (latching) action to control two circuits with one switch.
• 20A Capacity — Rated for up to 20 amps, suitable for spa pumps, blowers, lights and similar components.
• Air‑Activated Operation — Works with an air button and tube: when air pressure is applied via the tubing, the switch toggles on or off.
• Barb Connection — Accepts standard 1/8" air tubing for easy installation with most air button setups.
• Threaded Mount — Designed to mount through a panel hole (approximately 9/16"–5/8"), making it ideal for spa control panels.
• Durable Construction — Compact, thermoplastic body with quick‑connect electrical terminals for reliability in humid spa environments.
• Versatile Application — Commonly used as a replacement in many spa brands and systems that use DPDT air switches. 
• Part no. TBS‑317

Why choose this product?
This latching air switch is essential for restoring or upgrading manual control of spa equipment. Its robust design and 20A rating make it suitable for a wide range of electrical loads while ensuring reliable, safe activation via a simple air button interface.