Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 810-0101-02 GilAir-5 Basic (ATEX), Pump only Price on request 800573-100 Diagnostic Panel only, Hi/Lo (2-50cc, 20-200cc, 0. Price on request 375-0003-01 Pump Carrier, Soft, Gilian 800i/5000/10i/12/GilAir Price on request