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905-339 - Febco Single Poppet Kit 850/860/880

Febco 905-339 Single Poppet Kit for 850/860/880 (1/2"-3/4")

Brand: Febco
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$32.57
$24.43
SKU 905-339

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Replacement single poppet kit engineered for FEBCO Model 850, 860 and 880 reduced-pressure zone (RPZ) backflow assemblies. Built for field service and routine maintenance, this OEM-design kit restores the check valve poppet and related components for 1/2" and 3/4" sizes to help maintain proper backflow protection.

  • Compatibility: Fits FEBCO Models 850, 860 and 880 RPZ assemblies in 1/2" and 3/4" sizes.
  • Kit contents: Single poppet, seal (seat) disc, disc retainer and round HD screw — components needed for a single-poppet repair.
  • Purpose: Restores the internal check function of the RPZ assembly to protect potable water from backflow hazards in irrigation, fireline and industrial applications.
  • Service notes: Inspect and replace worn parts during scheduled maintenance; test the assembly after service per local code and AWWA/ASSE guidance.
  • Installation: Designed for assemblies with NPT end connections (ANSI/ASME B1.20.1). Follow the included installation and relief-valve instructions for correct reassembly.
  • Part reference: FEBCO OEM part number 905-339 — intended as a direct replacement for single-poppet repairs on listed models.

This kit is ideal for service technicians, plumbers and irrigation professionals who need a straightforward replacement solution for FEBCO RPZ assemblies. Use the linked installation and maintenance manuals included with the product for torque, orientation and test procedures; always perform a statutory post-service test and record results per your local authority having jurisdiction.

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Frequently Asked Questions

What models is the 905-339 poppet kit compatible with?
Fits FEBCO Models 850, 860 and 880 RPZ assemblies in 1/2" and 3/4" sizes.
How often should the poppet kit be inspected or replaced?
Inspect assemblies at least annually and replace worn poppet components during maintenance or after a failed test.
Does the kit include all parts for a single-poppet repair?
Yes. The kit contains the poppet, seal (seat) disc, disc retainer and round HD screw for the listed sizes.
Can I use this kit on non-FEBCO assemblies?
This kit is designed for FEBCO 850/860/880 assemblies. Fit on other brands is not guaranteed—verify part numbers before use.

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