Experience a reliable seal with our high-quality rubber O-Ring, designed for those demanding applications where precision and durability are paramount. Measuring 11/16 inches in outer diameter and 1/2 inches in inner diameter, this O-Ring is crafted to fit snugly and perform optimally, reducing the risk of leaks or wear. Available in a convenient 20-pack, it's an essential addition for any homeowner or professional looking to maintain the integrity of plumbing or machinery systems.