Use this Delta shower cartridge to repair worn or leaky 1300 and 1400 series Delta shower controls. Convenient front installation means there's no need to access the back side of the shower wall. The Delta faucet cartridge combines hot and cold water controls into a single unit. A built-in rotational limit stop enhances bather safety by restricting the maximum temperature of the water that reaches the shower head. The valve design of this Delta bathroom faucet cartridge also minimizes temperature changes caused by pressure fluctuations in building plumbing systems. Running dishwashers and flushing toilets have a negligible effect on shower outflow temperatures.