Nailor Model 0890 is an economical round duct access door suitable for use in low pressure applications. A durable hinge permits the heavy duty 16 ga. (1.6) door to swing open fully, allowing unobstructed access to the duct, while the zinc plated strikes and catches and polyurethane foam gasketing provide a tight, positive seal when closed. Model 0895 turret style access doors provide heavy duty construction with easy opening, suitable for use in medium and high pressure round duct systems. Features include an all-welded turret box and saddle formed to duct radius, and a high-pressure 0800 Series access door that is caulked and fastened to turret. Zinc plated progressive camlocks and bulb type door gasket provide a secure, tight seal.