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Asset identification

Backflow device identification: record the model, type, and size

Reliable identification combines the full assembly photo, manufacturer label, model, nominal size, system use, and location.

Working verdict

Reliable identification combines the full assembly photo, manufacturer label, model, nominal size, system use, and location. Shape alone is not enough to select parts, testing, or replacement.

Backflow service and compliance workflow reference
FIELD VIEW Use the shape as a clue. Confirm the model label before service.
Before you act

Escalate unreadable labels, conflicting records, a failed test, or a part request without model confirmation.

Interactive check

Turn observations into a next step

This narrows the route. It does not replace an on-site test, manufacturer instructions, or local requirements.

What evidence identifies this device well enough for service or testing?

Evidence sequence

Move in this order

  1. 01

    Verify the exact asset

    Photograph the label and full installation before a service visit.

  2. 02

    Apply the right requirement

    Match the label to manufacturer literature and the asset record.

  3. 03

    Retain the completed record

    Use verified identity to route to the correct test, repair, or replacement path.

Identification notes

What to look for

  • The label and size are the primary identity record.
  • System use and location provide context but do not replace manufacturer data.
  • A serial number may help asset tracking but is not always a parts lookup key.

Safe observations

What you can check without taking it apart

  • Use the official utility or authority requirement for this property.
  • Confirm exact model and size before parts, repair, or replacement work.
  • Retain the final result with the property asset record.

Stop conditions

Move to qualified help when

  • The model or size cannot be confirmed.
  • The device family is being guessed from a visual resemblance.
Get help with this next step

Boundary check

Do not confuse this path with

  • A generic service listing does not establish program eligibility.
  • A device family is not enough to identify compatible parts.
  • This page does not replace a qualified assessment or authority approval.

Official local layer

Your utility sets the rule

The governing program determines compliance requirements, while exact manufacturer documentation determines the identified assembly service path.

Verified utility matches: 96

Evidence ledger

What this decision path is built on

The governing program determines compliance requirements, while exact manufacturer documentation determines the identified assembly service path.

  1. 01
    U.S. EPA · EPA-CCC-001Cross-Connection Control ManualBackflow, backsiphonage, device families, hazard protection, testing, and program responsibility. Verified 2026-08-02.
  2. 02
    Watts · WATTS-RPZ-009Series 009 reduced pressure zone assemblyRPZ construction, relief discharge, installation constraints, service literature, and local-code warning. Verified 2026-08-02.
  3. 03
    USC Foundation for Cross-Connection Control and Hydraulic Research · USC-APPROVAL-LIST-2026List of Approved Backflow Prevention AssembliesCurrent approval-list guidance: exact assembly type, manufacturer, model, size, manual edition, orientation, and approved replacement shutoff compatibility must be verified. Verified 2026-08-02.

Continue the case

Related next steps

NoticeBackflow test notice workflowRepairBackflow repair scopeReportBackflow report submission

CONTENT REVIEWED · 2026-08-02