Mechanical 24-Hour Time Switch With Heater Protection - SPST 120 Volts - Outdoor Plastic depth-marker-conveys_Feet The incorporated debris retention valve

The incorporated debris retention valve and microfilter trap dirt

) Test Kit

Model RC554XP includes a controller

and Nautilus Plus Filters

Mechanical 24-Hour Time Switch With Heater Protection - SPST 120 Volts - Outdoor Plastic depth-marker-conveys_Feet The incorporated debris retention valveThis is a T101P201 24 Hour Mechanical Time Switch with Heater Protection, SPST, 120 Volts, with beige plastic outdoor 3R enclosure. This model is designed to turn OFF a gas fired swimming pool heater approximately 20 minutes before the filter pump shuts down. This eliminates the problem of pounding and knocking due to overheated water, reduces scale and lime deposits, and extends the service life of the heater. The Intermatic T100 Series mechanical