Pentair High Limit Switch | MasterTemp 125 Pool & Spa Heater | 474367Z C4401 Superchlorination may be needed on

Superchlorination may be needed on a nightly basis in a heavily used spa or as infrequently as once a week in a moderately used spa

protecting the internal components from debris and providing a finished

Designed to perform on low flow suction

cartridges required for complete filter service (This is not an exhaustive list

Easy-open lid provides quick access to basket

Pentair High Limit Switch | MasterTemp 125 Pool & Spa Heater | 474367Z C4401 Superchlorination may be needed onThe Pentair 474367Z is the OEM replacement high limit switch for the MasterTemp 125 pool and spa heater. IMPORTANT: LICENSED PROFESSIONAL INSTALLATION REQUIRED Gas and electrical heater components must be serviced by a licensed pool professional or qualified HVAC technician. Do not attempt to service gas or high voltage components without proper certification. The high limit switch is a safety critical thermal protection component within the