Features. Will fit 1220 gallon tanks with side inlets. HEPA filtration stops ultra fine dust. 9996 efficient down to 03 microns. 20 more efficient than standard ShopVac brand disposable filter bags. Sturdy plastic collar keeps bag attached to the vacuum inlet. Collar cover seals opening to keep dirt in bag during disposal. Nonhazardous nontoxic nonflammable materials only. Number in Pack 2Specifications. Dimension 15 H x 12 W x 2 L. Weight 09 lbs