The Danco 5-Piece Repair Kit for Moen Faucets helps restore a leaky faucet. Replacing the o-rings in the faucet cartridge will create a better seal and help prevent water leaks. This kit is Ideal for single-handle faucets and contains the parts needed to repair one Moen Brass Cartridge.Constructed of durable rubber,Designed for repairing brass cartridge for Moen faucet,Complies with the reduction of lead in drinking water act,Ideal for single-handle faucets