... head part 1/4" air conditioning copper access valve :Specifications:1.Supply you all sizes of access valves: 1/8", 1/4", 5 ... : 40mm,50mm, 60mm, 70mm, 80mm, 90mm, 100mm,120mm.3.Copper access valve,Copper made charging valve,copper check valve for refrigerator ... ,with without head part.Pictures: 1/4" air conditioning copper access valve