Cyclone, BGI4L Gasket Back Catalog number: 811-9927-04 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0113-01 Filter Cap, Replacement for Nephelometer Price on request GCU3745GS Cassette, 37mm 3pc .45µm MCE Gridded Sterile 50/Pk Price on request 800485-111-01 GilAir-3 R Pump, No Battery Price on request