Filter, 37mm, 0.8µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC837 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25500 Filter, MCE, 5.0µm, 25mm, 100/Pack Price on request 360-0138-01 Operation Manual/Software CD for Nephelometer, TSP Price on request 910-0915-NO-R GilAir-Plus STP 3-Pump Starter Kit, Bluetooth, No Price on request