The Febco 876VST is double check detector assembly ( DCDA ). It is available in 2 ½” – 10” sizes and began production in 2011. The body is made of ductile iron with a fused epoxy coating. The 876VST and 876V main body are visually identical. Parts are not interchangeable between the 876 and 876VST. The 876VST utilizes a ¾” Watts 719 for the bypass assembly.
American Backflow Products Company