DFT Inc. manufactures world class, problem solving, in-line, axial flow, nozzle style silent check valves and severe service control valves. Whether it is "in stock", or a "custom engineered, special order", the DFT® sales and engineering staff will respond quickly to your requirements. DFT® is the only company that specializes in a broad spectrum of spring-assisted, in-line silent check valves with materials ranging from ductile iron to exotic alloys, and are Made in America. Keep up-to-date on the latest at DFT: https://www.dft-valves.com/blog/ https://www.facebook.com/DFTvalves/ https://twitter.com/DFTValves https://plus.google.com/u/0/+Dft-valves https://www.youtube.com/channel/UCBAiEUvgPsAJTnd8LmRKfVg