Plumbing & Faucet Rubber Washers

(33 products)

Curated rubber washers for faucets, supply lines, slip-joint drains, garden hose fittings and fixture sealing — the sizes plumbers reach for most, each available in EPDM, Neoprene, Nitrile, Silicone, Natural Rubber, Viton and Fiber. For potable water and hot/cold cycling, EPDM is the go-to; Neoprene handles general fixture duty.

Not sure which size seals your fitting? Read our plumbing washer guide, match a metric spec with the mm conversion tables, or enter your exact dimensions in the Washer Size Finder to search all 1,700+ sizes. Bulk and wholesale pricing available on every size.