1. Radiator valve with handle 2.Male AC-FIX radiator valves are adaptable to all types of radiators and fan-coils supplied with cold or hot water. They can be used with all kinds of pipes: copper, galvanized steel, iron, PEX, Multilayer etc. Sizes(AXB)CodeA:3/8"-B:M24x1.5MVA23824A:1/2" - B:M24x1.5MVA212241/2"x3/4"MVA21234(*)