Gradko are market leaders in the supply and analysis of low cost air pollution monitoring equipment. We are also specialists in the manufacture of high quality small-bore peristaltic pump tubing.Air sampling equipment:Our passive samplers are suitable for a wide range of compounds for ambient air quality monitoring. Our equipment is used in outdoor air analysis, indoor air surveys, hazardous gas sampling, personal exposure, materials emissions and soil contamination monitoring for example. Nitrogen Dioxide and Nitric OxideSulphur DioxideOzoneAmmoniaHydrogen SulphideAcid gases FormaldehydeVOCsPump tubing:Gradko specialise in high quality small-bore peristaltic pump tubes for a variety of medical, laboratory and industrial applications. PVCSiliconeSantopreneVitonNeoprenePTFEPolyethyleneProperties such as flexibility, clarity, colour, heat stability density and chemical resistance can be specified. Our tubing is supplied in reels or as ready assembled units of ribbon or bridged tubing.