Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800884-171 GilAir-5 RP Pump, No Charger Price on request 910-1301-NO Gilian 800i,Starter Kit, No Cord Price on request GFG858X10 Filter, Glass Fiber, Binderless, 1.1µm, 8" x 10", Price on request