Description Air injectors create slugs so the entire surface area of the inside of the pipeline are washed. Proper slugging will result in less water and detergent needed while doing a superior job of scrubbing the stainless steel tubing Surge Air Injector valve mounted in stainless steel box Requires separate control unit or Compass washer Made in USA by GEA WestfaliaSurge Related items and spare parts; 7750-0112-918 Air Valve Only for GEA Surge Air Injector 7750-0109-509 Air valve Kit for GEA Surge Air Injector Updated 2/23