Inlet Filters, Replacement for GilAir Plus, Pack o Back Catalog number: 811-0905-01-R Manufacturer: SENSIDYNE Availability: 3 weeks Price on request - + Recommended GPG37100 Filter, Support Pads, Cellulosic, 37mm, 40.0µm, 10 Price on request 6075-0410-R Screwdriver, Philips / Pan-Head 40 x 5/8, GilAir-3 Price on request 801012-100 Aircon-2 DC Programmable Area Air Sampling Pump, ( Price on request