Ridgid 72947 VF4000RT Standard Filter The product is 72947 FILTER, VF4000 STD VAC PAPER The product use for fume and smoke extractor filters This product manufacture by MEXICO Pleated paper filter large surface area. Conveniently washable, reusable, clogs less quickly, Use for both wet and dry pickups More than twice the filter surface area of the leading competitor Pleated paper filter treated with microban which fights and inhibits the growth of mold, mildew and bacteria that shorten filter life