Filter, 25mm, 5.0µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 375-0009-01 Carrying Case for Nephelometer Price on request 201169 Air Boss, Blue, GilAir-3/GilAir-5 Price on request 910-0905-EU-R GilAir-Plus Data Logging 5-Pump Starter Kit, Euro Price on request