Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9932-01 Belt Harness Assembly for FSP-10, FSP2, and GSP-3. Price on request GB37C Band, 37mm Shrink, Clear 100/Pack Price on request 800510-171 GilAir-3 RP Pump, No Charger Price on request