Ductmate sandwich access doors offer a cost effective and convenient solution to the problem of gaining access to rectangular ductwork for maintenance or cleaning. Manufactured in a wide variety of sizes Ductmate sandwich access doors also offer the following beneficial features:
Two sheet metal construction formed by precision 'stamping' to provide increased strength.
User friendly hand knobs to facilitate easy opening and closing without the need for special tools.
Conical spring design which enables the two piece door to perform as a single unit.
Opening cut in the duct wall permits the back plate or 'inner plate' to slip easily through and due to the neoprene gasket, form an airtight seal.
Three piece thermally insulated version available.