DURAVENT

Metal chimneys; metal stovepipes; pipes, clamps, and fittings therefor of metal; metal building products, namely, formed metal conduits, and metal screens both with and without shutters incorporated therein; chimneys for fuel burning appliances, namely, furnaces, fireplaces and stoves made primarily of metal; flexible metal connector pipes; ventilating ducts of metal; metal chimney liners; metal chimney parts, namely, metal baseplates, couplings, tee sections, covers, rain caps, spacers, collars, stove connectors and adapters; metal chimney caps; metal chimney cowls; metallic venting pipes and tubes of metal for appliances using various fuel sources; metal venting parts, namely, metal connector pipes for venting; metal pipes elbows for pipes, tees, and supports; metal vent adapters for chimneys; alignment pipes, namely, alignment pipes of metal for venting; tee-caps, namely, metal tee-caps for venting; metal tee-caps for venting having metal latches; metal vents for venting gas appliances; metal roof hatches, smoke vents, floor doors and sidewalk doors; metal all-fuel chimney systems composed of metal lengths, elbows, tees, and metal chimney supports; chimney and pipe system installation parts made of metal, namely, flashings, split angle rings, flange adapter kits, supports, and guides; metal chimney system parts, namely, supports and buckets; metal duct connectors; access doors, roof hatches, garage doors, and static heat and smoke vents, all made of metal; ventilation systems comprising metal gas vent pipes and metal chimneys; metal air duct fittings for use with air distribution systems; metal roof accessories for HVAC and plumbing installations, namely, mounting rails and flashing systems comprised of reinforced pipe flashings; metal clamps; metal roof vents for ventilation in residential and commercial buildings; ventilating metal pipes; ventilating metal liners; HVAC ductwork components and accessories made primarily of metal, namely, flanges, connectors, couplings, access doors, and hangers; chimney parts primarily of metal, namely, chimney sections, pipes, expansion joints, slip joints, joints, drain plugs, elbows, tees, increasers, penetration assemblies, closure rings, storm collars, caps, stack termination caps, and cones; metal air duct fittings for use with air distributions systems

Metal chimney flues; Heating supplies and equipment, namely, chimney flues and structural parts therefor; gas heaters and pipes for air heating and ventilating equipment and structural supports and parts therefor; metal gas vent pipes and fittings for use with gas appliances; flues, chimney and vent pipes being part of heating and ventilation installations and structural parts thereof, namely, pressure reducer valves, safety valves, clamps, T-pieces, connectors, reducers, drip caps, steam valves, elbow joints, tee joints, reducing couplings and drip caps, all for the aforesaid pipes and flues and all sold as a unit; furnaces; fireplaces; chimney flues; internal flue liners for metal chimneys, all the aforesaid goods made wholly or principally of metal; stovepipe kits for connecting stoves to chimneys comprising pipe sections, connectors and trim collars; metal direct vents for gas appliances; chimneys for solid fuel stoves; venting conduits for direct vent stoves and fireplaces; direct vents for gas, oil and solid fuel appliances; ventilating exhaust pipes and tubes for heating appliances using various fuel sources; ventilation apparatus, namely, pipes and pipe fittings for venting; apparatuses for filtering air, namely, air filtering installations and machines for filtering air for commercial and domestic use; air filtration installations; air filtration units; air purifying apparatuses and machines; air filters for air filtration units in industrial installations; filters for air purifiers; diffusers, namely, heat diffusion collars and discs for use in furnaces; heat registers; grilles for ventilation; louver valves for ventilation; return faces for ventilation; heat and smoke ventilators; heat registers for baseboard and floor; heat registers for side wall; heat registers for ventilation; chimney dampers; chimney damper kits comprising chimney damper bearings, counterweights, chain, chain coupling and chain lock; grille frames for ventilation, air volume controllers for ventilation; manual air volume dampers; control grids and baffles for use with registers, grilles and diffusers for air distribution systems; damper regulators and regulator sets to regulate the flow of air comprising chain, pulleys, hooks and screws packaged together; direct vent pipes and chimneys for gas appliances; flexible duct primarily of nonmetal as part of air distribution systems; metal air duct fittings as part of air distributions systems; registers, diffusers, and grilles used in heating, ventilation, and air conditioning systems; non-metal chimney flue liners; non-metal gas vents for use in air condensing and heating appliances comprising polypropylene pipes, fittings, clamps and liners; HVAC ductwork components and accessories made primarily of metal, namely, diffusers, air turning vanes and rails, and dampers, namely, control devices used in air ducts to regulate the flow of air

Non-metal rigid pipes and fittings therefor, for gas, oil, and solid fuel appliances; pipe flashing units made of plastic and rubber for mechanically sealing pipes going through openings in roofs; flexible duct primarily of nonmetal for use with air distribution systems; non-metal roof accessories for HVAC and plumbing installations, namely, mounting rails, pipe flashing adaptors, and flashing systems comprised of reinforced pipe flashings; chimney parts that are primarily non-metal, namely, chimney sections, pipes, expansion joints, slip joints, joints, drain plugs, elbows, tees, increasers, penetration assemblies, closure rings, storm collars, caps, stack termination caps, and cones