Fix your leaking faucet with the Danco flat faucet washer. Repairing a dripping faucet is an easy and inexpensive alternative to replacing the entire fixture. Flat faucet washers are used most on quick opening styles of faucets. The flat design allows a full flow of water, provides positive shut-off, abrasion resistance and temperature resistance.Durable rubber construction1/2 trade size -3/4 in. OD (Box No. 20)Flat faucet washerProvides positive shut offIt is designed to allow full water flowUse on “Quick-opening” style faucetsEasy to installB