Cassette, 25mm, Classic Style, PCM, 0.8µm, MCE, No Back Catalog number: GCS25080 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended TE-21 Teflon Bag, On-Off Valve (1.2L) Price on request 800093-3 Inlet Filter Replacement Kit, LFS-113 (Packg of 3) Price on request 811-0501-01 Flow Monitoring Software Kit (Software, Cable, & M Price on request