Pentair Sta-Rite MasterTemp 400/Max-E-Therm 400 LP Orifice (77707-0441) valveparts Helps correct leaks around the

Helps correct leaks around the motor shaft area

Jandy and Praher retrofit configuration

It is a practical option when the original insert needs both visual and functional renewal

or heavy use

Pentair Sta-Rite MasterTemp 400/Max-E-Therm 400 LP Orifice (77707-0441) valveparts Helps correct leaks around theThis LP orifice is used in compatible MasterTemp 400 and Max E Therm 400 heaters configured for propane operation. It helps meter propane flow to the burner system, making correct model and fuel matching essential. If the heater is being serviced after gas train work, conversion work, or a combustion related diagnosis, the orifice should be inspected and verified. Gas heater parts should be installed only by qualified personnel who can confirm safe