This is a first check kit for the 4" Febco 860 Series reduced pressure zone backflow preventers. This check kit includes all internal parts for the first check assembly. Simply unbolt the old check assembly and bolt in this new replacement. Genuine Febco repair kit. No special tools are required for servicing.
**Notice: The original Febco 860 and LF860 use different parts. Please be sure which model you have before ordering. The LF860 can be identified by an epoxy coated relief valve body. The original 860 had a bronze relief valve body.