Febco 856STDCDA LG GPM 6 Part of the 856ST Series Drain Fitting Gear operated butterfly shutoffs with Gear operated butterfly shutoffs with tamper switches This 4 IN reduced pressure zone assembly backflow preventer helps prevent the reverse flow of fire protection substances and water of non potable quality from being pumped or siphoned into potable water supply due to backsiphonage and or backpressure in accordance with national plumbing codes and water authority requirements Specifications ArmorTek Technology No Backflow Preventer Type Double Check Detector Assembly Body Finish Epoxy Coated Body Material Ductile Iron Body Pattern Inline Brand FEBCO Buy American Act Compliant NO Bypass Yes Bypass Size 3 4 IN Cap And Tether No Disc Material Rubber EAN 098268647983 Elbow Fitting No Hazard Protection Level Non Health Hazard Hot And Harsh Water No Hydrant Connection No Inlet Connection Size 6 IN Inlet Connection Size Metric 152 from entering into the potable water supply