PlumbShop O-Ring, 7/16-in ID x 9/16-in OD x 1/16-in, Black, 2-pk

These durable black rubber o-rings make the perfect seal for plumbing and piping needs. Made to Wallaceburg and Waltec specifications, the size of 7/16 inch inner diameter by 9/16 inch outer diameter by 1/16 inch thickness helps ensure a tight seal around nuts, bolts and pipes. Included are two o-rings, so you'll have a spare on hand if one fails. These simple yet effective seals help keep fluids, air and debris where you want them, helping plumbing fixtures and systems last longer.