Filter, MCE, 0.45µm, 37mm, 100/Pack Back Catalog number: GF37450 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GCU37080MW-2 Cassette, 37mm 2pc 0.8µm, MCE Matched (50µg), 50/B Price on request 783-0015-01 Lithium Ion Replacement Battery Pack for Nephelome Price on request SC-9 Tedlar Bag (45.0L) Price on request