Rectangular Ring Gaskets with Rounded Corners

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A rectangular ring gasket is a rectangle with a rectangular cutout — a picture-frame seal for hatches, bezels, and duct flanges. We laser-cut custom rectangular ring gaskets to you r exact inner and outer dimensions, no minimum order, shipped within one business day. Dimensions You Enter for a Rectangular Ring Gasket Outer length & width The outside of the frame Inner length & width The cutout / opening Thickness 1/16", 1/8", 3/16", or 1/4" Corners Square or rounded Available in every material we stock — neoprene, silicone, EPDM, Buna-N, Viton, PTFE, cork, and fiber. Additional specs on request. Common Rectangular Ring Gasket Applications Window, hatch, and door frame seals Display and instrument bezels Rectangular duct and register flanges Enclosure perimeter gaskets Access-frame and cover seals Rectangular Ring Gasket FAQs What is a rectangular ring gasket?It is a flat rectangular frame — a rectangle with a rectangular hole cut out of the center — used to seal around a rectangular opening such as a hatch, window, or duct.How do I specify a rectangular ring gasket?Enter the outer length and width plus the inner length and width of the cutout. We cut the frame to those exact dimensions with square or rounded corners. Enter your dimensions in the quote tool above for an instant price on custom rectangular ring gaskets from Fastest Gaskets — no minimum order, ships in one business day. {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[{"@type":"Question","name":"What is a rectangular ring gasket?","acceptedAnswer":{"@type":"Answer","text":"It is a flat rectangular frame — a rectangle with a rectangular hole cut out of the center — used to seal around a rectangular opening such as a hatch, window, or duct."}},{"@type":"Question","name":"How do I specify a rectangular ring gasket?","acceptedAnswer":{"@type":"Answer","text":"Enter the outer length and width plus the inner length and width of the cutout. We cut the frame to those exact dimensions with square or rounded corners."}}]}. Large orders may take longer. Show more