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Air Purifier Filters
Whole House Filters
#237 O-Ring for #5 and #10 Slim Line Housings (Buna-N FDA Grade)
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Pentair O-Rings for Filter Housings
Seals the housing sump to the housing cap to prevent leaks.
It is important to keep the o-ring lubricated with silicone grease.
*Buna-N grade O-rings should be replaced every two filter changes or if there is damage.
Viton Grade (part # 151117) fits #10, #12, and #20 all natural polypropylene housings. Approx 4" in diameter.
Silicone Grade (part # 151118) fits #10, #12, and #20 high temperature filter housings. Approx 3 7/8" in diameter.
Buna-N Grade (part# 151120) fits #10, #12, and #20 Standard housings. Approx 4 3/8" in diameter.
Buna-N Grade (part# 151121) fits #5 and #10 Slim Line housings.Approx 3 3/4" in diameter.
Square-Cut O-ring (part # 151254) fits Big Clear housings. Approx 5 3/4" in diameter.
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