Fix your leaking faucet with Danco's Tub Drain Cartridge Gasket. Repairing a leaky drain is an easy and inexpensive alternative to replacing the entire drain. Cartridge Gaskets are used for tip-toe bathtub stoppers. Tub Drain Cartridge Gaskets allows a full flow of water, provides positive shut-off, abrasion resistance and temperature resistance. Danco's cartridge gaskets are a necessity for a DIY faucet repair.