11 Plumbing products, namely, plumbing fittings in the nature of pipe junctions, couplers, taps, valves, drains, drain pans and water heater installation kits consisting of plumbing fittings comprised of push-fit couplers or adapters and demount clip; Apparatus for heating, steam generating, cooking, refrigerating, drying, ventilating, water supply and sanitary purposes, namely, heating installations, steam generators, cooking ovens, refrigerators, clothes dryers, ventilation hoods, sinks, sanitary installations in the nature of steam rooms; plumbing hardware, namely, washers for water taps; plumbing installations, namely, taps being faucets; push-fit plumbing fittings for hot and cold water supply and for central heating and under floor heating systems, namely, couplings, connectors, valves, adapters, flow controllers, reducers, enlargers, dividers; water control valves for faucets; taps being faucets; plumbing fittings, namely, valves; thermostatic valves, radiator valves; control apparatus for conserving energy in heating boilers and hot water heaters, namely, water control valves, safety shut-off valves, flow controllers, reducers, enlargers, dividers and plugs sold as a unit with heating boilers and hot water heaters; heat pumps; air source heat pumps, ground source heat pumps; plumbing fixtures and fittings, namely, valves; regulating accessories for water apparatus and pipes; safety accessories for water apparatus and pipes, namely, manually, electrically and pneumatically operated shut off plumbing valves; thermostatic valves being parts of heating installations; air valves being part of heating installations; replacement parts and fittings for the aforesaid goods