This is a seat ring and arm assembly for the 2 1/2 - 3" Febco 850, 856, 860, 870, 876, and 880 double check assemblies. This seat ring and arm will fit either the first or second check. Replace your damaged seat with this 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.