Duct access plugs, metal patches, and zip screws close cleaning access openings in metal ductwork. Spycor Environmental offers NIKRO plastic plugs in 1", 2-1/2", and 4" sizes, galvanized metal patches, zip screws, and foil tapes, plus zone bags, duct mask, and vent magnets for temporary isolation during cleaning.
Duct cleaning contractors can select supplies by opening dimensions, duct material, closure method, and package quantity. Distinguish permanent access closures from temporary register covers, and verify tape suitability and installation requirements for the duct system.