Cassette, 37mm, 3pc, 2.0µm,Teflon, 50Box Back Catalog number: GCU37200T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9981-50 Sorbent Tube, Porapak-N, 6X70, 88/44, 50/BX Price on request 910-1301-NO Gilian 800i,Starter Kit, No Cord Price on request 800061 Cyclone, Dorr-Oliver, 10mm - Nylon (1.7LPM-US) Price on request