（Accurate compatibility）VF3500 replacement filter compatible with Ridgid Shop vac 3-4.5 gallon Wet/Dry Vacuums， includeds WD3050, WD4050, WD4070, WD4522,WD4800, 4500RV,4000RV. (Easy to install）installed or removed quickly, easily and safely, no tools or hardware needed. （Easy to clean）The VF3500 filter for ridgid shop vac is made with pleated paper,Just wash it with water then place in the sun to dry. （Reusable）With the 3-layer pleated vacuum design,reusable.,this filter picks up 99% of material that is 1/2 micron or larger, making it perfect for ash, superfine dust, dirt, sawdust and more,Reduce blockage. （Package Include）2pcs Replacement Filter for Ridgid VF3500 in the package. If you have any questions with our product, please don't hesitate to contact us.