Pentair MasterTemp Pool Heater Stack Flue Sensor | 42002-0024S Aboveground "text": "This adjustable head lets

"text": "This adjustable head lets you tune flow across four settings

and Dust and Vac 5-9-3000

cement the slip ends (or thread if applicable)

helping maintain clear and balanced water

Pentair MasterTemp Pool Heater Stack Flue Sensor | 42002-0024S Aboveground "text": "This adjustable head letsPentair 42002 0024S Stack Flue Sensor Part # 42002 0024S the replacement stack flue temperature sensor designed for use in select Pentair and Sta Rite pool spa gas heaters. This sensor monitors flue gas temperature to ensure safe and proper combustion performance. Key Features Designed specifically for gas fired pool and spa heaters requiring a stack flue sensor. Detects excessive flue gas temperature or blocked flue conditions and signals the control