Higher pressure and higher capacity means a longer, louder blast! The model 6270 air system is the ideal product for powering any Kleinn Air Horn. This kit has many features that simplify installation and prolong the life of the product. Sealed and moisture/dust resistant compressor bodies make installation on the exterior no problem. the kit also includes the "snorkel system" and check valves to protect the compressors. The air tank has 5 ports and is configured so that no matter how you mount it, there is always a drain port available on the bottom.