Products > HVAC > Access Doors – The “Sandwich” for Round and Rectangular Duct Rectangular Duct – Insulated – Galvanized - DI106GA, 10 × 6Access Doors – The “Sandwich” for Round and Rectangular Duct Rectangular Duct – Insulated – Galvanized - DI106GA, 10 × 6Access Doors – The “Sandwich” for Round and Rectangular Duct Rectangular Duct – Insulated – Galvanized - DI106GA, 10 × 6 
