Lasco 3/8"x1/2"x1/16" #15 Faucet O-Ring, made of durable nitrile (Buna-N) rubber, is a versatile solution for faucet repairs or other applications. Ensures a precise fit and an improved seal to prevent leaks. Compatible with numerous faucets, this O-ring is suitable for both DIY projects and professional use. Bagged.