Waterway Crystal Water Cartridge Manifold Plug (519-4320) mpindustries The no-overlay format adds practical

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

Matching the correct 1-1/2 inch slip configuration helps preserve intended fit and restore dependable visual inspection capability

75 HP pump applications

Genuine Balboa Water Group pump replacement

The 18 inch by 19-1/4 inch dimensions

Waterway Crystal Water Cartridge Manifold Plug (519-4320) mpindustries The no-overlay format adds practicalThe 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