Cassette, 37mm, 2 pc, 0.8µm Polycarbonate, 50/Box Back Catalog number: GC728PC Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800618 O-Ring/Gasket Kit, GilAir-3 Price on request 800772 Impinger, S-P, Micro, PVC Coated glass (2 oz./50ml), collar clip Price on request 780-0015-04-R Calibrator cable (BIOS Defender 510-M), for automatic cal option Price on request