I have used a crankcase breather on my old Harley almost from new. I have always used the Chrome top ""other brands"" with Chrome bracket but always wanted to try the K&N as I also have a K&N air cleaner. My old crankcase filter was full of oil and the backing came unglued so was way past time for a replacement filter.I checked measurements and this fit in my existing chrome 2"" bracket. Only after I ordered this I see K&N also makes a version with a chrome top but its twice the price as this filter.This filter looks to be built well and I already have the K&N cleaning / oil kit for all my other K&N filters so I hope with cleaning I can use this filter a long time. I had no idea how much oil and goo was in my old filter, being able to clean this will be a big benefit. I think it looks good perhaps the K&N chrome top next time?