1 FIRST IN SERVICE

bathroom fixtures and fixture fittings, namely, bathtubs, showers, tub and shower enclosures, sinks and shower heads; heating and air conditioning equipment, namely, air conditioners for commercial and industrial use, gas and oil fired furnace boilers for domestic, commercial and industrial use, hot water radiators for heating domestic and commercial buildings, hot water heaters for domestic and commercial uses, ventilating fans for domestic and commercial uses; and blowers for use in commercial air conditioning and heating units