Cheap And Discounts Bowden PTFE Tubing for 1.75mm Filament With PC4-M6 Fittings PC4-M10 Pneumatic For Creality Ender 3/ Pro Ender 5/Pro CR-10/10S Wholesale. Buy Directly From Merchant SOOLO Home Improvement Hareware Globle Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.