Air conditioning apparatus and installations; Air filters for air conditioners in vehicle passenger compartments; Coils as parts of distilling, heating or cooling installations; Fans for air conditioning apparatus; Filters, heaters and pumps sold in combination for use in swimming pools; Gas purification machines; Plumbing fittings, namely bibbs, cocks, traps, valves; Portable electric deicers for preventing ice damage in waterways; Waste water purification apparatus, installations and tanks;...