Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9930-01 Cyclone, FSP-2 Higgins-Dewell Style Cyclone with E Price on request 360-0201-01 Operation Manual/Software CD for Deluxe Nephelomet Price on request 830-0001-01 Model AP-20S Gas Detection Pump Kit Price on request