Extended Life Cleanable filter & washable Air Filter for MTU. It is used on the 396, 2000 & 4000 series engines It is an after market filter that can be cleaned with soap and water.
1-3 micron @81% & 3-10 micron @97%. It also has a MERV rating of 12 and a permeability(Frazier) of 20. These are better then paper media and the K&N Style with cotton gauze #5360900001