Air hose coupling US Type and European Type Material: Material Iron or Carbon Steel Size: 1/4"-2" Small order can acceptable  Universal air coupling European type and US type, Air hose coupling, Compressor claw couplings  1) Air hose couplingUniversal air coupling / Chicago coupling/air hose couplig European type and US type 2)Air Hose Coupling Casting method:Investment castingSand casting 3)Air Hose Coupling Sizes:From 1/4" to 2" -----1/4"  3/8"  1/2"  3/4"  1" 1-1/4"  1-1/2" 2"   4)Air Hose Coupling Body material: Carton steel or Malleable Iron 5)Air Hose Coupling Sealing: NBR 6)Air Hose Coupling Thread type: BSP or NPT7)Air Hose Coupling Parts:   Male end   Female end   Hose end Without collar   Hose end With collar