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Curtronizer Economy Strip Door, for walk-in coolers & freezers, for openings up to 40"W x 80"H (commonly used for 36"W x 78"H openings), 8"W X .080" thick USDA polar reinforced PVC strips (rated for -20 to 140 F temps) cut flat and punched with holes on 2" centers, 40" wide single piece poly mounting hardware, NSF