The air filter on your motorcycle or ATV is the only protection your bike has from the elements. Make sure your motorcycle or ATV is protected with the Twin Air dual-stage off-road air filter. The Twin Air dual-stage off-road air filter traps even the smallest particles without restricting air flow to offer the best power output without harming the engine. With fused layers of patented open-pore foam and fine inner foam the Twin Air dual-stage off-road air filter protects from dust, dirt, and sand. The special adhesives used in the construction of the Twin Air dual-stage off-road air filter will withstand repeated cleaning even with harsh solvents. Large, flat sealing surface is greaseless. Comes with a Twin Air backfire filter, plastic flange reducer, and hose clamp.