Filter, 37mm, 0.4µm, Polycarbonate, Plain White, 1 Back Catalog number: GFPC4537 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 811-9929-01 Inhalable Dust Sampler, GSP-3.5 Conical Style (100 Price on request 401904 FITTING-LUER As In Low Flow Modules Price on request 780-0015-05-R Calibrator cable (Gilibrator 2-USB and Gilibrator Price on request