FEBCO has announced the release of its MicroSeries backflow preventer. This "No Gates" design is shorter and lighter than other models, and it features integral butterfly valves to serve as shut-offs. The MicroSeries features the 4" Model 830 double check with a flange to flange lay length dimension of 22 inches. The Model 831 double check detector is also offered. www.febcoonline.comFEBCO.