This dried nitrogen is used by our technicians, for example, for leak testing before commissioning air conditioning and refrigeration systems. For various tasks, we also recommend: Pressure reducer Refrigerant fitting Vacuum pump Refrigerant scale Disposal station Cylinder collection Refrigerant and much more... If the item is listed as a rental item in your sales channel, it must usually be shipped with the Coolenvi service vehicle. Please note that these rental items cannot be shipped by air freight due to logistical restrictions. If your location is on an island or overseas, please check the shipping method and equipment availability in advance to avoid delays. Coolenvi is a certified specialist company for sustainable service in accordance with the Chemicals Climate Protection Regulation 303/2008 and the Implementing Regulation (EU) 2015/2066.