Cheap And Discounts 1/4 Inch NPT Solid Nickel Plated Brass Air Compressor Tank Fill Valve 6.35mm Male NPT Standard Thread Core Rated To 2g00psi Wholesale. Buy Directly From Merchant Black & White & Yellow Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.