Is your Gerber tub or shower faucet dripping, not holding temperature, or just not working right anymore? This 97-013 pressure balance cartridge is likely the fix you need. It's the official replacement part for Gerber's Safetemp series valves, specifically the 49-400, 49-700, and 49-800 models. This little cartridge is the brain of your shower valve—it balances hot and cold water pressure to keep your shower temperature steady and safe, even if someone flushes a toilet elsewhere in the house. Made right here in the United States with Gerber's reliable quality, it features a sleek, elegant design that fits perfectly into your existing valve body. Installation is a straightforward DIY job for most handy folks; just make sure to turn off your water supply first! Getting this genuine Gerber part means your shower will work like new again, giving you consistent, comfortable showers without the worry of sudden temperature swings. Keep one on hand for quick repairs.