Outerwears Pre Filters These increase the time between filter cleanings, These are water repellent so if you forget and get into high water you are less likely to suck in water. (These are water repellent, not water proof) These pre filters are Ideal for those that don't like cleaning there K&N's as you can go more time between cleanings. Shown in Red also available in Black, Blue, Purple, Orange, Green and Yellow. These fit the Iceman cold air intake filters