This is a second check spring module for the 6" Febco 880 Series reduced pressure zone backflow preventers. This spring module is a self contained assembly. Replace your weak or broken spring with this genuine Febco repair kit. No special tools are required for servicing.
**Notice: The original Febco 880 and LF880 use different parts. Please be sure which model you have before ordering. The LF880 can be identified by an epoxy coated relief valve body. The original 880 had a bronze relief valve body.