Febco 905-409 Check Rubber Kit for Series 860 (2 1/2" & 3")

Febco 905-409 is a genuine check rubber kit engineered for the Series 860 reduced pressure zone (RPZ) backflow preventer. The kit supplies the rubber components required to rebuild the first and second check assemblies for 2 1/2" and 3" sizes. Using original Febco parts helps ensure correct fit, reliable sealing, and consistent service performance in irrigation, fireline, and industrial processing applications where backflow protection is required.

• OEM replacement kit compatible with Febco Series 860 RPZ backflow preventers.
• Compatible sizes: 2 1/2" and 3" — fits first and second check assemblies.
• Kit contents: check discs, O-rings, seat ring gaskets, bearing sockets, cover O-rings, sensing line gasket, and mounting hardware.
• Materials: high-quality elastomers designed for potable water service and resistant to common system chemicals.
• Service guidance: intended for professional servicing — follow Febco installation and maintenance manuals for correct disassembly, orientation, and test sequencing.
• Benefits: restores valve sealing function, reduces leakage risk, extends service life, and helps maintain code-compliant backflow protection when installed correctly.

Documentation for this part includes installation instructions, maintenance manuals, relief valve assembly guidance, and freeze-protection notes — consult the appropriate Febco manuals before beginning work. This kit is intended for qualified technicians or service professionals; verify model compatibility (860 vs LF860) and follow required isolation and testing procedures. For parts identification or technical assistance, refer to an authorized Febco distributor or the manufacturer’s documentation.