Cheap And Discounts 1PCS Pneumatic Quick Connector PCF PC PL SL PB 4MM-12mm Hose Tube Air Fitting 1/4" 1/8" 3/8" 1/2"BSPT Male Thread Pipe Coupler Wholesale. Buy Directly From Merchant Dashen Electric Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.