Pentair Sta-Rite MasterTemp/Max-E-Therm Manifold Bypass Valve Kit (77707-0001) bathpumps The Waterway 212-8050S Poly Storm

The Waterway 212-8050S Poly Storm jet internal is designed for compatible jet assemblies and features a 3-3/8 inch face diameter with directional action

Replacing the cartridge can help restore more dependable filtration and improve water clarity

Improves water clarity support and service confidence

The 22358 is a practical replacement for compatible Astral Pool systems that need renewed top-mount valve control and cleaner multi-mode performance

Helps maintain the intended look of the spa seating area

Pentair Sta-Rite MasterTemp/Max-E-Therm Manifold Bypass Valve Kit (77707-0001) bathpumps The Waterway 212-8050S Poly StormThe manifold bypass valve kit supports controlled water movement inside compatible MasterTemp and Max E Therm heater manifolds. A worn or damaged bypass can affect heater flow behavior, temperature regulation, and internal water routing. Replacing the kit is often part of resolving heater performance issues related to flow, noise, or manifold service findings. This is a critical water path component and should be installed as part of a careful heater