If you're a homebrewer who loves the ease and sanitary features of Tri-Clamp fittings, you will find many uses for this Tri-Clamp End Cap. If you have Tri-Clamp fittings that you want to leave in place when not in use, but you want a way to seal them off, this Stainless 1.5in Tri-Clamp End Cap is what you're looking for. It will effectively cap a ferrule when not in use. You can also use it to close off the front end of a valve to keep the interior space sanitary.