Cyclone, 37mm Filter Screen Back Catalog number: 811-9927-08 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 850190M Manual, Gilibrator-2 Price on request 910-1701-EU-R Gilibrator 3 Deluxe Kit, All Three Dry Cell Sizes Price on request 201169 Air Boss, Blue, GilAir-3/GilAir-5 Price on request