Cassette, 37mm, 3 pc, 0.8µm Polycarbonate, 50/Box Back Catalog number: GC738PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 385-0114-01 Zero Cap, Black Rubber for Nephelometer Price on request KB-05 Kynar Bag 0.5L Price on request 800883-171-2305 GilAir-5 R Pump, 5-Pack with Universal 5-Unit Char Price on request