Waterway Crystal Water Cartridge Manifold Plug (519-4320) mpindustries The 18 inch by 19-1/4

The 18 inch by 19-1/4 inch dimensions

Supports easier pool vacuum setup and use

A properly selected Infusion Pool fitting contributes to dependable fit

The no-overlay format adds practical value because the visible face can be selected separately to match the exact original button configuration

or has been damaged during service

Waterway Crystal Water Cartridge Manifold Plug (519-4320) mpindustries The 18 inch by 19-1/4The Waterway 519 4320 cartridge manifold plug is designed for compatible Crystal Water cartridge filter systems. A manifold plug like this is an important service part because it helps complete and seal the manifold area properly, supporting correct assembly and dependable filter operation. Small internal components can have an outsized effect on maintenance quality, especially in filtration systems where a missing or damaged plug can interfere with