Filter, 25mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4525 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 830-0001-01 Model AP-20S Gas Detection Pump Kit Price on request 811-9918-02 Go-Cal AC Adapter NEMA, 100-240V Price on request 201119 Filter inside low flow modules 800518 & 800519 Price on request