11 Parts and equipment for motor vehicles heating and air conditioning systems, namely, domestic and commercial block hot water heaters for commercial use; coolant recovery systems comprising coolant reservoirs and coolant temperature sensors, electric fans, air conditioner parts, namely, evaporators, valves for air conditioners, namely expansion valves, clutches for land vehicles, namely, fan clutches, in-line filters and air drier-accumulator filters for air conditioning units, air filter fittings for air conditioning units, parts of heat accumulators and heat exchangers namely heat risers, heater cores, heater hoses, and heater valves, orifice tubes and o-rings for vehicles air conditioners, retrofit kits for vehicle air conditioners comprised of electric fans, evaporators, air filters