Are you tired of losing suction to your vacuum? The Filter Guard from Buff Brite will solve it! Your filter will last and so will the suction you expect from your equipment. Just slide this over your filter and tighten the drawstring. The weighted bag at the bottom will raise to the bottom of the filter when you turn on the backend. When the vacuum turns off, gravity will do the rest. The weight will drop and the bag will snap releasing any excess debris.