Filter Housing, Rear GilAir-3/GilAir/5 Back Catalog number: 202816-1 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GCU37080MW Cassette, 37mm, 3pc, 0.8µm, MCE, Matched, Unb. 50/ Price on request GF37450 Filter, MCE, 0.45µm, 37mm, 100/Pack Price on request 360-0201-01 Operation Manual/Software CD for Deluxe Nephelomet Price on request