Bathtubs and shower trays; Chlorinating units for water treatment; Electric bath-water purifying apparatus for household purposes; Gas water heater for bathtub consisting of circulation pump with thermostat to fill, re-heat water and keep water warm; Heating systems composed primarily of tubes, pipes and manifolds through which warm or high temperature water circulates; Ice machines and apparatus; Ice making machines; Refrigerator shelving, drawers, bins and trays; Swimming pool chlorinating ...