Temperature control valve threaded ISO228/1 material: braass body , plastic handle Size:1/2", 3/4" OEM service Straight radiator valve ... cartriday, brass stem, brass seal gasket, NBR o-ring, ABS handle,etc.6, Medium: water, oil, gas, etc.7, Type: straight ... is free.4, Competitive prices&high quality&prompt delivery Temperature control valve, brass radiator valve for floor heating system