Why it matters: Advanced doughnut design provides a secure, reliable seal to prevent leaks in water filter systems.

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Kit Includes: Item Number Size Quantity 33601 3-1/2" I.D. - 3-3/4" O.D. - 1/8" Thick 4 33602 3-5/8" I.D. - 3-7/8" O.D. - 1/8" Thick 4 33603 3-3/4" I.D. - 4" O.D. - 1/8" Thick 3 33604 3-7/8" I.D. - 4-1/8" O.D. - 1/8" Thick 3 33605 5-5/8" I.D. - 5-7/8" O.D. - 1/8" Thick 2 33606 3-3/8" I.D. - 3-3/4" O.D. - 3/16" Thick 2

Water Filter Rubber O-Rings

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$32.19

Item name: water filter rubber o-ring - 3-1/2 x 3-3/4 x 1/8 - (box of 4) · water filter rubber o-ring - 3-3/4 x 4 x 1/8 - (box of 4) · water filter rubber o-ring - 3-3/8 x 3-3/4 x 3/16 - (box of 3) · water filter rubber o-ring - 3-5/8 x 3-7/8 x 1/8 - (box of 4) · water filter rubber o-ring - 3-7/8 x 4-1/8 x 1/8 - (box of 4) · water filter rubber o-ring - 5-5/8 x 5-7/8 x 1/8 - (box of 3) · water filter rubber o-rings

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Highlights

Doughnut-shaped design: Ensures a snug, leak-proof fit for water filter housings
Durable rubber material: Withstands water exposure and chemical contact for long-lasting performance
Multiple size options: Accommodates various water filter models for versatile compatibility
Easy installation: Simple to fit and replace, reducing downtime during maintenance

Specs

Material	Rubber
Shape	Doughnut (O-ring)
Available Sizes	3 1/2" ID x 3 3/4" OD x 1/8" thick, 3 5/8" ID x 3 7/8" OD x 1/8" thick, 3 3/4" ID x 4" OD x 1/8" thick, 3 7/8" ID x 4 1/8" OD x 1/8" thick, 5 5/8" ID x 5 7/8" OD x 1/8" thick, 3 3/8" ID x 3 3/4" OD x 3/16" thick
Quantity per Kit	4 (varies by size)
Application	Water filter installation and maintenance

Full product description