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Product image: FEBCO 905-345 relief valve rubber kit showing diaphragms, seat disc, O-rings, slip rings, and lubricant packet.

FEBCO Relief Valve Rubber Kit 905-345 for 860/880 (1/2" & 1")

Brand: Febco
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$77.01
$57.76
SKU 905-345

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Genuine FEBCO relief valve rubber kit 905-345 for Series 860 and 880 reduced pressure zone (RP) assemblies in 1/2" and 1" sizes. This OEM kit replaces the critical rubber components in the relief valve to restore proper sealing and operation after wear or damage.

  • Fits FEBCO Series 860 / 880 RP assemblies (sizes: 1/2" and 1").
  • Kit contents: seat ring, gasket ring, seat disc, inner diaphragm, outer diaphragm, 2 slip ring cylinders, O-ring, and a packet of lubricant gel.
  • Genuine Febco replacement parts manufactured to OEM specification for reliable fit and performance.
  • Designed to address common relief valve failures—restores sealing surfaces and diaphragm function.
  • Simple service procedure: regular inspection and replacement of rubber parts helps maintain backflow protection.
  • Documents available: installation instructions, relief valve assembly guide, maintenance and freeze-protection manuals.

Order this kit to perform targeted relief-valve repairs and reduce downtime. Always confirm your assembly model and size before ordering. For installation or troubleshooting, consult the supplied manuals or a licensed plumbing professional.

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Frequently Asked Questions

What components are included in the 905-345 kit?
Includes seat ring, gasket ring, seat disc, inner and outer diaphragms, 2 slip rings, an O‑ring, and a lubricant packet.
Which FEBCO models and sizes is this kit compatible with?
Compatible with FEBCO Series 860 and 880 reduced-pressure (RP) assemblies in 1/2" and 1" sizes.
Can I install the relief valve rubber kit myself?
Routine replacement is straightforward for experienced technicians; if unsure, engage a licensed plumber to protect the RP assembly.