G.T. Comis imports and exports cast-iron, stainless steel and brass fittings. The company sells articles for the water-heating-plumbing sector, such as hemp, PTFE tape, gaskets, hoses, mixer taps, taps, under-basin valves, welding allows, elastic joints, cast-iron, stainless steel, brass, copper and bronze fittings, filters, flanges, welding elbows, gas stoves and air conditioners. It imports mono split, dual split and triple split air-conditioning systems, dehumidifiers and convectors.