Filter, 47mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC447 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended GF25TQ Filter, Tissue Quartz, (99.90% retention of 0.3µm Price on request GFPC4537 Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Price on request 783-0012-01-R Battery Pack NiMH Rechargeable Price on request