Filter, PTFE with Polypropylene Backing, 0.5µm, 37 Back Catalog number: GF37050T Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 800257 Single Variable Flow Kit, 7-10 x 175mm Price on request 810-0102-02 GilAir-5 Clock, with timer (ATEX), Pump only Price on request 360-0138-01 Operation Manual/Software CD for Nephelometer, TSP Price on request