Gerber-tub-faucet-leaking, a detailed and useful introduction to the benefits of gerber cartridges. gerber's product engineer demonstrated how gerber's cartridge allows the best professional performance of its faucet products.. Dripping faucets can waste a lot of water and run up utility bills. according to the environmental protection agency, an average household can leak and waste 10,000 gallons of water per year. by ..., view all gerber shower and bath products, available in a variety of configurations and finishes. download spec sheets, parts lists, and installation sheets.