Mine was over tightened from the factory on my big horn, and had a spiral crack thru the center of the valve body. Ended up calling heartland for a replacement. Couldnt find the replacement at the time on line anywhere. Would just drip every now and then, but it did leak none the less. Found an all brass version from swan industries, but it would have required a lot of plumbing being changed. At the time I wanted a direct replacement to ease the installation.