Outlaw Racing Super Seal Air Filter Made In USA Yamaha YXR45F Rhino 450, YXR66F Rhino 660 Superseal greaseless filters make the chore of servicing airfilters a breeze . Superseal neoprene gasket base seals perfectly even in the most extreme conditions without the hassle of messy grease . Extra wide sealing ring for air tight seal. Constructed with bonded dual layer foam.