Hayward Pro Series Drain Cap w/Gasket Pre-2005 (SX180HG) feherguard The spa-and-pool versatility gives this

The spa-and-pool versatility gives this cartridge practical value because some filter cartridges serve multiple water system types while still requiring an exact cross-reference match

An O-ring helps create a dependable seal at a compatible large circular connection

31 inch length

and this Filbur FC-0136 cartridge is designed for matching applications where renewing the cartridge element is the main service need

This set provides two union fittings to help rebuild or replace pump connection points on the suction and discharge side

Hayward Pro Series Drain Cap w/Gasket Pre-2005 (SX180HG) feherguard The spa-and-pool versatility gives thisThis drain cap with gasket is intended for older Hayward Pro Series sand filters built before the 2005 design change. It helps seal the drain port after service, winterization, or routine maintenance. For compatible pre 2005 Pro Series sand filters Includes gasket for improved sealing Helps close the tank drain port securely Useful when original drain caps are worn or lost Supports seasonal maintenance and leak prevention