Outerwears Prefilter, 4.5" x 4" Select Color:Red and exhaust ports all cast

and exhaust ports all cast and ready to install

No additional mounting hardware is included

or for the fitting that goes to the fuel recovery tank (in case kart overturns)

an elastic band encloses the end of the glove to keep the 'gauntlet' of the glove from slipping down during operation of the kart or car

Outerwears Prefilter, 4.5" x 4" Select Color:Red and exhaust ports all cast4. 5"x 4" Outerwears Pre Filter for go kart air filters. Available in a variety of colors to fit your kart's look and colors. These filters are ideal for protecting your air filter from dirt and debris, with fine mesh filtering particles larger than 0. 005". This prolongs the life of your air filter between cleanings, and prevents damage to the filter. These pre filters are ideal for aftermarket performance filters more common in Briggs Gas Animal,