Universal 3.0/3.5" Cyclone Air Filter Donaldson Snorkel Head Pre Cleaner Intake Inlet Air Flow Snorkel Ram Sand Cup All Model - Air Intakes Parts - AliExpress
Amazon.com: New Turbo II Model 46 Pre-Cleaner with 6" Inlet/Air Intake & 350 to 700 CFM : Automotive
Briggs & Stratton 13.5 To 27 HP Paper Engine Air Filter with Pre-Cleaner - Bliffert Lumber and Hardware