Cyclone, 37mm Filter Screen Back Catalog number: 811-9927-08 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-0921-01-R GilAir Plus impinger Bracket for single impinger holder Price on request 800618 O-Ring/Gasket Kit, GilAir-3 Price on request 811-9928-01 Cyclone, 47mm Slaton Cassette for RASCAL Cyclone 811-9925-01 Price on request