Filter, Tissue Quartz, (99.90% retention of 0.3µm Back Catalog number: GF37TQ Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 801407 Manifold Kit, Dual, 10 x 110mm Price on request 801012-100 Aircon-2 DC Programmable Area Air Sampling Pump, ( Price on request 615-0910-01 Cd with software, manuals and USB drivers Price on request