Pentair Flange Valve Adapter, 8.5", 6 TPI | 154521 Patio Sale Supports consistent flow by maintaining

Supports consistent flow by maintaining a clear inlet path

Maintains spray pattern and flow in pool and spa spray features

Pentair 07017-0158 Hydro Relief Valve - 2in is a 2in hydro relief valve used in compatible Pentair filtration systems

Waterway fittings meet industry standards

Its 48-inch slimline profile makes it an ideal choice for residential patios and commercial verandas where space and style are equally prioritized

Pentair Flange Valve Adapter, 8.5", 6 TPI | 154521 Patio Sale Supports consistent flow by maintainingWhat This Part Is Used For Pentair 154521 Flange Valve Adapter 8. 5in, 6 TPI is a replacement adapter used to connect compatible Pentair multiport or control valves to filter tanks. It provides the threaded interface between valve and tank flange. Why This Part Matters A damaged or stripped adapter can cause leaks at the valve connection point. Replacing it restores a secure seal and proper valve alignment. This helps prevent water loss and pressure