Double Wall Insulated Vent Connector Kit

No drilling or screwing required. Eliminates costly elbows and accessories. UL LISTED WITH A (1) INCH CLEARANCE TO COMBUSTIBLES. CANNOT PASS THROUGH WALLS,FLOORS OR CEILINGS. For Use with Natural Draft Appliances. Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.