Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 910-0906-NO-R GilAir-Plus STP 5-Pump Starter Kit, No cord Price on request 801000-3 Power Module, 120V/230V/DC, with 230V Euro Cord ( Price on request 385-0117-01 Tri-pod mounting bracket for Nephelometer (Tri-pod Price on request