Hydro-Quip 3" Heater O-Ring/Gasket [Qty-2] (60-0020-K-2) leafbone Replacement is often needed when

Replacement is often needed when the original diffuser is cracked

The FloThru design helps support efficient water movement through the unit

and this Filbur FC-2770 cartridge is designed for 7CH-90 and PSD90P4 applications

giving service teams and pool owners a complete replacement set rather than piecing cartridges together one at a time

Hydro-Quip 3" Heater O-Ring/Gasket [Qty-2] (60-0020-K-2) leafbone Replacement is often needed whenThe Hydro Quip 3 inch heater O ring and gasket is designed for compatible heater sealing applications where the connection point needs a fresh sealing component. A seal like this is useful because it helps maintain a dependable barrier against leaks at an important heater interface, supporting both performance and service confidence. This replacement is especially useful when the original O ring or gasket is flattened, brittle, leaking, or being