Cassette, 37mm, 3pc, 0.8µm MCE 50/Box Back Catalog number: GCU37080 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request 360-0135-01 GilAir PlusQuick Start Guide Price on request 360-0201-01 Operation Manual/Software CD for Deluxe Nephelomet Price on request