Gerber Plumbing 1-9/16 in. x 3-5/16 in. x 1-9/16 in. Washerless Cartridge for Pressure Balance Valves in Black

Pressure balance valves maintain a consistent shower temperature even if the supply of hot or cold water changes. This allows for other faucets and toilets in a home to use the water supply while a shower is running. Using pressure balance valves can help to protect against scalding.|Washerless cartridge assembly for Gerber valves GS-313-PK, GS-314-PK, GS-315-PK and GS-317-PK|Washerless cartridge|Anti-scald capability|Adjustable temperature limit stop|Adjustable volume control|Instant shut off in the event of hot or cold water failure|Pressure balance design maintains plus/minus 3 degree F temperature range