Repair your leaky one-handle tub/shower faucet with the Danco cartridge replacement for Moen PosiTemp faucets. Cartridges can become broken overtime caused by everyday wear and tear or a defective cartridge can cause low water pressure and leaks. This Danco replacement cartridge can restore your tub/shower fixture back to its original functionality, saving both water and the cost of purchasing an entire new shower fixture.