Cheap And Discounts 4Inch Ventilator Pipe 100Mm Pvc Aluminum Tube Air Ventilation Pipe Hose Flexible Exhaust Duct 3/2M Air System Vent Bathroom Wholesale. Buy Directly From Merchant F-Tools Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.