4" Straight Air Filter Cleaner, K&N Style with Tecumseh adaptor but you can adapt it to other engines.
Hole in adaptor is 1 1/2" center, mounting holes 1 7/8" on center.
I adapted one of these to my 79cc engine making a plate to go behind the Tecumseh adapter. $25.00 free shipping to any 48 states.
Filter fits standard 2 7/8" adaptor and I will sell just filter for 20.00 shipped and I have several.
M.O. or personal check is okay. I'm in NE Alabama, PM me where to send check or M.O. and of course the engine is not included for those of you that don't know better.
My first time ! I think I listed this by the rules, someone let me know if I didn't do it right.
Thanks William