11 plumbing fixtures, namely, toilets, sinks, urinals, hand dryers and automatic hand dryers, and corresponding flush valves and automatic flush valves, faucets and automatic faucets, traps, carrier mountings and fittings therefor, and toilet closet flanges; Plumbing fittings, namely, drains and associated hardware, namely, covers, collars, drain bodies, drain risers, flanges and deck plates, all being part of sanitary plumbing installations; carriers for mounting water closets and lavatories; fixture carriers, and plumbing specialties in the nature of shower heads, shower arms, faucet hole covers, trap protectors, shower floors, flanges, flush valves, and faucets which when combined provide a sanitary plumbing drainage system; heating installations; heat exchangers, not being parts of machines; pre-assembled heating manifolds sold as a unit, namely, supply and return headers and valves, brackets, inline air vent modules with thermometer, auto air vent and drain valve and flow meter, with on and off valves, for furnaces, boilers and air conditioning units; expansion tanks for heating systems; backflow preventer for hot water heating systems; plumbing fittings and connectors, namely, valves, couplers, bibbs, spouts, adapters for water and gas supply, push-fit connector fittings, supply stops in the nature of water shut-off valves, and pressure regulators for water, gas and sanitary installations; Plumbing fittings, namely, metal valves; Plumbing fittings, namely, plastic valves