Up for sale is UNI 2016-2019 Arctic Cat Alterra 700 XT EPS MULTI-STAGE COMPETITION AIR FILTER NU-8606ST. Read title carefully to know what you are getting. Catalog description�. Designed to fit in the factory air box exactly like original filter The best selling replacement air filter for competition motorcycles and ATVs Unique two stage design allows for easy and complete cleaning Dual layer of foam, can be serviced separately Thin Ultra Seal base is virtually impossible to tear and has a built-in "Grease Groove" .