Robinair's Low-Side Tank Adapter features a 1/2 inch ACME Female x Low-Side R-134a Coupler configuration. Durable brass construction ensures long life and corrosion resistance. The deeply knurled base offers superior grip for hand tightening. Made in the USA. Robinair, a Bosch Automotive Service Solutions brand, is a global leader in service tools and equipment based in Owatonna, Minnesota. Robinair is recognized throughout the world as the quality and performance leader in AC/R evacuation tools and this position has led to its success with the full range of products that serve the heating/ventilating/air conditioning/refrigeration (HVAC-R) and mobile markets, which includes the automotive aftermarket along with other industries such as agriculture and construction.