Lasco 5/8"x3/4"x1/16" #30 Faucet O-Ring. Crafted from durable nitrile (Buna-N) rubber, this O-ring is designed for faucet repair or other general purposes. It ensures a precise fit and an improved seal to prevent frustrating leaks. Compatible with numerous faucets, it's suitable for both DIY and professional plumbers. Bagged.