FEBCO LF856 OSY - 6" - DCDA LF - (LF856OSY6) - 124451


Lead Free MasterSeries In-Line Double Check Detector Assemblies (Type II) - Large Diameter


MasterSeries LF856 Lead Free double check detector assemblies are designed to protect drinking water supplies from dangerous cross-connections in accordance with national plumbing codes and water authority requirements for non-health hazard service applications such as irrigation, fire line, or industrial processing. This assembly consists of a fused epoxy coated ductile iron body using ArmorTek coating technology for advanced corrosion resistance. Maximum working pressure: 175psi (12.1 bar).

The coating on this backflow assembly uses ArmorTek™ technology to resist corrosion due to microbial induced corrosion (MIC) or exposed metal substrate.



  • Utilizes advanced ArmorTek coating technology to resist corrosion of internals
  • The valve body shall utilize a coating system with built in electrochemical corrosion inhibitor and microbial inhibitor
  • Primarily used for protection of drinking water systems and fire sprinkler systems
  • Winterization feature with disc retainers and valve body drain ports
  • Protects drinking water supplies from dangerous cross-connections
  • Inline serviceable assembly requires no special tools



FEBCO LF856 OSY - 6" - Double Check Detector Assembly DCDA 124451 - (LF856OSY6)