4in 400ST Retrofit Kit Adapters To Replace 3in Competitor Backflow

The RFK4X3-400ST Zurn Wilkins setter adaptors are ideal for retrofitting existing competitor 3in n-Pattern backflow installations with a Zurn Wilkins 4in 400ST series stainless steel n-Pattern backflow preventer.

• Designed to adapt ZURN Wilkins 4" 400ST series stainless steel n-pattern backflow preventers to existing 3" risers with 12.5" center-to-center spacing.
• Retrofit kit includes two offset adapters with 4" x 3" flanged connections.
• Adaptors used in conjunction with ZURN Wilkins 4" 400ST series for a direct drop-in-replacement for retrofitting existing competitor 3" n-Pattern backflow installations.
• Lead-free ductile iron body with FDA Approved fusion epoxy coating.
• Used in conjunction with 400ST n-Pattern Backflow Assemblies (450ST, 450STDA, 475ST, 475STDA)
• Available in sizes 4" - 10" in options Flange x Flange, MJ x Flange, MJ x MJ
• Allows backflow preventer to fit tighter center line dimensions
• Simplifies installations
• Eliminates the need to pour concrete thrust blocks
• Provides for a lower installation cost