Replace : OT320320. Compatible with : Atlas SBC1200 XL Sand Blast Cabinet with Vacuum dust collection system. Length: 12-1/8 in. Rubber Gasket: 3/8 in. thick Outer Diameter: 6-3/4 in. EFFECTIVE DUST MANAGEMENT: self-contained dust collection system with a cartridge filter, maintaining clean work conditions by efficiently removing floating rust and used media. Products Include: 1 x Dust Collector Air Filter OT320320. Replace : OT320320.