Water Filter Housing Replacement O Rings for AP801-AP802

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2 pcs O Rings for Big Blue 10" and 20" Housings

Two Water Filter Housing Replacement O Rings compatible with 3M Purification Aqua-Pure AP801 / AP802. For (3) AP810 compatible cartridge kit with (1) o ring AP801oring(1). This   We recommend consumers keep a spare o ring on hand to avoid urgent situations. This o ring will accommodate filter housings which require large diameter cartridges. These cartridges have an approximate diameter of 4.5 inches. The o ring itself actually measures approximately 5 5/8 inch (inside diameter). An o ring facilitates a water tight seal between the water filter sump and the water filter head. The most common o rings (o-rings) used in water filtration are made from Buna N material. Buna N is also commonly referred to as nitrile. This is the ideal choice for cold water filtration because they are inexpensive and have superior performance characteristics.
Compatible with most 10" & 20" Big Blue Housings that take 3/16" x 5 5/8" O rings.

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