Commercial refrigerators and freezers and replacement parts and fittings therefor; Heating elements; Ignition systems comprised of a gas supply tube with a nozzle and an electrical igniter to create a flame at the nozzle for industrial applications, namely, for igniting waste gases being discharged from industrial stacks and for igniting gas-fired boilers; Microwave heaters for sealing containers and joining ceramic parts; Mixer taps for water pipes; Plumbing fittings, namely, shower control valves; Refrigerator shelving, drawers, bins and trays; Regulating accessories for water supply, namely, metered valves; Water filtration and purification units and replacement cartridges and filters therefor for refrigerators, ice makers