This is the Air Filter Set for the Tower Terror FEATURES: Two piece plastic construction allows easy replacement of foam filter Silicone Coupler INCLUDES: Top and Base with 3mm self tapping screw, part #102, 104 Foam Filter, part #103 Coupler, part #105 Two Plastic Zip Ties REQUIRES: Foam filter oil, DTXC2465 jxs 01/30/07 ir/jxs