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; Commercial dryers and warewashers sold as a unit for washing and drying food plates, bowls, pots, pans and food preparation and cookwares, glasses and utensils; Drying apparatus for use in heating, ventilation systems, air conditioning systems and refrigeration systems; Industrial apparatus using air for drying and cleaning components in the electronics, semiconductor, circuit board, pharmaceutical, medical, and food and beverage industries; Washing machine water treatment device connected to the cold water inlet to eliminate need for detergent; Water filtration and purification units and replacement cartridges and filters therefor; Water treatment equipment, namely, water filtration units and reverse osmosis units
Environmental Control Apparatus