Air purifying apparatus and machines; Boilers for heating installations; Cooling installations for water; Dripper irrigation systems, comprised of valves, filters and regulators; Heating systems for residential and commercial buildings comprised of boilers, valves, pipes, manifolds, control panel switches, and electrical wire, all sold as a unit; Hot water heating installations; Lamps; Lighting apparatus, namely, lighting installations; Pipes being parts of sanitary facilities; Plumbing fittings, namely, drains; Regulating accessories for water or gas apparatus and pipes; Sanitary installations in the nature of steam rooms; Showers; Spigots; Thermostatic valves as parts of heating installations; Valves for air conditioners; Water closets; Water filtering apparatus; Water purification installations; Water purifying apparatus and machines