Cyclone, 37mm Filter Screen Back Catalog number: 811-9927-08 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0201-02 GilAir-3 Basic (ATEX), Pump only Price on request 200156-6 Luer Taper Adapter (Packg of 6) Price on request 360-0040-01 Manual, GilAir-3/GilAir-5 Price on request