Beckson Inspection Port / Deck Plate Replacement Gasket

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Genuine Beckson replacement gasket/O-ring for compatible Beckson inspection ports and deck plates. Designed to replace a worn, stretched, damaged, or missing seal and help maintain a secure, watertight fit. Choose the replacement gasket based on the style and nominal size of your existing Beckson deck plate. Available Variants BECD4S-G / D4S-G – For 4" Beckson screw-out deck platesApprox. 4" opening / 4-1/2" cutout / 6-1/8" outside flange BECD6S-G / D6S-G – For 6" Beckson screw-out deck platesApprox. 6" opening / 6-1/2" cutout / 8-1/8" outside flange BECD8P-G / D8P-G – For 8" Beckson pry-out deck platesApprox. 8" opening / 8-1/2" cutout / 10" outside flange How to Check Your Size First determine whether your deck plate is screw-out or pry-out. Screw-out covers have a threaded lid that twists open, while pry-out covers snap into the frame. Then measure the clear opening or hole cutout, rather than relying on the overall outside diameter of the flange. The outside flange is considerably larger than the nominal deck plate size. If available, also check the underside of the lid or frame for a Beckson model or size marking before ordering.Available Options Manufacturer Part Number Size D4S-G 4" D6S-G 6" D8P-G 10" Show more