Single Variable Flow Kit, 7-10 x 175mm Back Catalog number: 800257 Manufacturer: SENSIDYNE Availability: In the manufacturer's stock Price on request - + Recommended 375-0009-01 Carrying Case for Nephelometer Price on request 801012-100 Aircon-2 DC Programmable Area Air Sampling Pump, ( Price on request 811-9928-02 Cyclone, 47mm Filter Screen (Stainless Steel) for Price on request