If your faucet is dripping or just not working right, this American Standard cartridge might be the fix you need. It's the M964407-0070A model, a 40mm cartridge that comes without any finish (so it's just the functional part, ready to install). These cartridges are super common in a lot of single-handle faucets, especially from American Standard. The construction is durable – built to handle daily use without wearing out quickly. Installing it is pretty straightforward if you're a bit handy; usually, you just need to turn off the water, pop the old cartridge out, and slide this one in. It's way cheaper than calling a plumber! The package is lightweight (about 0.136 kg), so shipping is easy. Whether you're fixing a kitchen faucet, bathroom sink, or tub/shower valve, this reliable cartridge helps restore smooth operation and stops those annoying leaks. Keep one on hand for quick repairs – it’s a life-saver when you least expect it!