Pentair MasterTemp Pool Heater Thermistor | 42001-0053S DE Filter Visible bumps under the liner:

Visible bumps under the liner: Smooth the foam during installation and remove debris caught between foam and wall

This innovative robotic cleaner is designed to thoroughly clean your pool floor and coves

3/4" Top Hub (10-Hole Pattern) | 78210400

a fast-acting

spring and O-rings

Pentair MasterTemp Pool Heater Thermistor | 42001-0053S DE Filter Visible bumps under the liner:Pentair Mastertemp & Max E Therm Thermistor 42001 0053s Ensure your pool or spa heater operates efficiently with the Pentair Thermistor 42001 0053s, a crucial replacement part designed for precise temperature regulation. This thermistor and water sensor is compatible with several high performance heaters, including the ETI400, Mastertemp, and Sta Rite Max E Therm models. This replacement thermistor is tailored specifically for the electrical systems