Repair your leaky faucet with the Danco DL-10 Cartridge for Delta Scald-Guard Tub/Shower Single-Lever Faucets. Replacing a faucet cartridge is an economical alternative to replacing the entire faucet fixture and a dripping faucet wastes both water and energy. The installation of a cartridge will stop the drip and return your faucet to like new condition.