The Hayward DEX2420F is a SwimClear/ProGrid Vertical Grid DE Bulkhead Fitting. Bulkhead Fittings are designed to allow a free flow of liquids in tanks and other plumbing connections. It is a genuine Hayward product. Fits: Hayward SwimClear C2020 , C3020, C4020, C5020 , C7020 and ProGrid Filters.
