Pentair MasterTemp 400/Max-E-Therm 400 Air Orifice (77707-0113) bluewhite this pressure hose helps support

this pressure hose helps support dependable cleaner performance and stronger long-term usability

It is a practical component for maintaining the skimmer’s finished appearance and access point

A four-button topside panel can provide a clean and intuitive control experience when it is matched correctly to the spa

Supports premium rebuild quality in larger-shaft pumps

and part number 77707-0253 against the existing equipment

Pentair MasterTemp 400/Max-E-Therm 400 Air Orifice (77707-0113) bluewhite this pressure hose helps supportFor service work on Pentair pool equipment, choosing the exact replacement part helps reduce callbacks and installation delays. This MasterTemp 400 Max E Therm 400 Air Orifice 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. Always compare the existing part,