I use the following on my John Deere 825i Gator.
This is a fantastic pre-filter for use on your UTV.
They offer products for numerous manufacturers of UTV and Automotive Vehicles.
Simply the enter the dimensions of your Air Intake Filter on their website and select your color.
If the dimensions are not shown, they seem to be willing to work with you on finding a pre-filter that will be compatible or they can do custom work as well.
Outerwears, Inc. - Original manufacturer of Pre-Filters & Shockwears