Cheap And Discounts 1PC Pneumatic Air One-Way Stop Valve KA-06/KA-08/KA-10/KA-15/KA-20/KA-25 Check Valve Globe Valve Wholesale. Buy Directly From Merchant Milling Mill Part Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.