Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Back Catalog number: GF37050T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended C-DFR Dual Flow Regulator Accessory, for ACTI-VOC and ACTI-VOC PLUS Price on request 800485-171 GilAir-3 R Pump, No Charger Price on request GFPC0237 Filter, 37mm, 0.2µm, Polycarbonate, Plain White, 1 Price on request