Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC0237 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0912-EU-R GilAir-Plus Data Logging 5-Pump Starter Kit, Bluet Price on request 801146 Impinger Holder Mounting Bracket, GilAir (required Price on request 375-0008-01 Protective Rubber Boot for Nephelometer Price on request