Cyclone, 37mm Filter Screen Back Catalog number: 811-9927-08 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GPP3700 Filter, Support Pads, Porous Plastic, 37mm, 20.0µm Price on request 810-0301-02 LFS-113 D Pump, No Charger Price on request GCU3745GS Cassette, 37mm 3pc .45µm MCE Gridded Sterile 50/Pk Price on request