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PentekA(R) O-Ring #237 (Buna-N FDA Grade)

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Pentek O-Ring 237 (Buna-N FDA Grade) Seals housing sump to cap. Prevent leaks. Keep O-ring lubricated with silicone grease. Fits #5 and #10 Slim Line housings. Buna-N FDA Grade. AirFilters.com This Pentek O-Ring 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. It is designed for #5 and #10 Slim Line housings. Purchase one today! Pentair is also known as Pentek.