Pentair MasterTemp Pressure Switch (42001-0060S) bluwater and over time the control

and over time the control pack can feel less and less reliable

Direct replacement compatibility

Valves in this style are useful when you need a direct mechanical way to isolate a section of plumbing for service or flow management

This EC90 retrofit kit updates EasyClean EC90 filtration with the correct replacement element components

If the cleaner is no longer changing direction correctly or is repeating an inefficient path

Pentair MasterTemp Pressure Switch (42001-0060S) bluwater and over time the controlBuilt for the application shown, this MasterTemp Pressure Switch supports a cleaner, more reliable repair when the existing component is cracked, worn, heat damaged, or no longer operating correctly. It is monitors water pressure or flow conditions so the heater can confirm safe operation before firing. A faulty switch may prevent ignition, create intermittent heater shutdowns, or trigger service codes even when the circulation system is operating