Pentair MasterTemp 200/Max-E-Therm 200 Air Orifice (77707-0111) watercousa Assembly-level replacements are especially practical

Assembly-level replacements are especially practical when the original drain needs broader renewal and the goal is to preserve original fit

this swing check valve helps restore dependable one-way flow control and contributes to better overall plumbing-system operation

Helps maintain steady flow in supported systems

That keeps the repair simple and effective

Pentair MasterTemp 200/Max-E-Therm 200 Air Orifice (77707-0111) watercousa Assembly-level replacements are especially practicalThis replacement MasterTemp 200 Max E Therm 200 Air Orifice gives technicians and pool owners a focused way to repair the affected assembly without replacing more equipment than necessary. It is used in the heater combustion system to help meter the air path for the correct burner configuration. Because orifice sizing affects how the heater breathes and fires, this is a precision replacement part rather than a generic fitting. Before installation,