Intermatic - 156T4042A - Fireman Switch 120V internal transformer 223 Unit Carton Length (in)

223 Unit Carton Length (in) 7

Total water use reporting

Input Voltage Range(s)

Plug-in timer rated for installation into a Type 3R outdoor low voltage transformer enclosure

Intermatic - 156T4042A - Fireman Switch 120V internal transformer 223 Unit Carton Length (in)Install Manual The 156T4042A Fireman Switch provides coordinated control for any pool spa heater and filter pump. It is designed to turn OFF a gas fired pool spa heater approximately 20 minutes before the filter pump shuts down. This eliminates the problem of pounding and knocking caused by overheated water and also reduces scale and lime deposits and extends service life of the heater. Features: Coordinated control for pool spa heaters and filter