OD 4mm 6mm 8mm 10mm 12mm Pneumatic Air Hose Quick Couplers 1/8" 1/4" 3/8" 1/2"

Material：Nickle-Plated Brass;

Thread size: M5=5mm, 1/8"=9.5mm, 1/4"=12.7mm, 3/8"=16mm, 1/2"=20mm;

For Hose OD: 4mm, 6mm, 8mm, 10mm, 12mm;