Just like you, the BrassCraft® KT™ Series ¼ Turn Ball Stops outperform – stopping at nothing to get the job done right. Designed, Machined and Assembled in the U.S.A., these stops provide uncompromising quality, dependability and innovation. With premium features, a sleek appearance and ease-of-use, the KT Series ¼ Turn Ball Stop is nothing short of brilliant. That is why plumbers have trusted BrassCraft products for more than 65 years.