Watts Regulator Co. has introduced the Sentry Series 775 and 775DCDA Double Check and Double Check Detector Assembly backflow preventers. The Sentry Series can eliminate expensive piping changes by allowing the placement of a Double Check or Double Check Detector in the same space as most single detector checks. These valves feature shorter lay length, stainless steel construction, and they are available in sizes 3" to 8".Watts Regulator Co. www.wattsind.com