This product is a suitable replacement for Elkay 51300C Designed to reduce lead, particles and chlorine. Also reduces odors and discoloration from incoming water. Filter should be replaced every 3,000 gallons (expires 1 year after installation). Equipped with quick-disconnect, 1/4-turn installation, as well as automatic inlet shut-off valve that closes when filter is removed Provides filtration at the point of use where needed; Pairs with EWF3000 universal filtration kit to upgrade any beverage system or faucet to filtered Filter Replacement Compatible With Elkay 51300C WatrSentry EWF3000 (No Chip - 6 Pack)