Access Doors – The “Sandwich” for Round and Rectangular Duct Rectangular Duct – Round Duct – Insulated – GalvanizedDUCTMATE® Sandwich® DRI241848GA Insulated Access Door, 18 ga, Steel, Galvanized, 24 x 18 in ActualDescriptionDUCTMATE® Sandwich® Insulated Access Door, Fits Pipe Size: 45 to 48 in, 24 x 18 in Actual Door, Fiberglass Insulation, -10 to 20 in-WG, R-Value: R-2.1, 18 ga Gauge, Steel, Galvanized, -20 to 200 deg F
Product OverviewSandwich Access Doors provide easy access to air ducts and units. This door was developed to provide a solid, well-insulated, leak-proof door that is simple to install.