Cheap And Discounts VF3500 Replacement 3-Layer Filter Compatible For Rigid VF3500 3-4.5 Gallon Wet/Dry Vacuum Cleaner WD4050 WD4070 WD4522 Wholesale. Buy Directly From Merchant SSS A95M Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.