Oneida Air Systems AXD000009 Ultimate Dust Deputy Kit for Festool HEAVY DUTY - Captures over 99% of airborne dust and debris, containing it in a large 9-gallon Systainer compatible bin. HIGH EFFICIENCY - Separates larger debrisandthe finer dust particles, the UDD virtuallyeliminates filter clogging and suction loss. WET OR DRY - Compatible with nearly any wet/dry vacuum with a 50-150 CFM rating. PATENTED DESIGN - Patented Dust Deputy cyclone separator (industrial static conductivemodel). EASY WASTE DISPOSAL - Plastic bag hold-down system - allows for easy mess-free waste disposal.