Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0914-NO-R GilAir-Plus Data Logging 3-Pump Starter Kit, Bluet Price on request 910-1702-EU-R Gilibrator 3Low Flow Dry Cell Kit (Hard Shell Cas Price on request 783-0014-01-R GILAIR PLUS BATTERY PACK, DC BACK PACK Price on request