Green Guru LLC Irrigation & Landscape Lighting

Backflow Service Parts

Febco 765 Air Vent Kit

A service-first guide to common leaks and repair paths for Febco 765 PVB assemblies (OEM parts under the Watts umbrella).

Leak diagnosis Freeze damage paths OEM parts Scope confirmed on-site

When this part matters

  • Water leaking/dripping at the air vent assembly
  • Intermittent weeping after startup or after shutdown
  • Float/seat issues causing poor sealing
  • O-ring degradation from age, debris, or freeze events

Repair paths we’re prepared for

  • O-ring replacement
  • Float replacement
  • Bonnet/bridge replacement (when damaged or warped)
  • OEM replacement parts sourcing (Watts / Febco)
Scope note: This is a parts guide. Backflow work may be regulated depending on jurisdiction and device type. We'll confirm site conditions and scope before service.

Fit & availability

We confirm fit and compatibility during service and can supply or install owner-supplied hardware.

At a glance

Febco 765 facts
IndustryIrrigation
ConceptPressure vacuum breaker (PVB) air vent repair part
Brand / ManufacturerFebco (Watts)
Series / ModelFebco 765
FitsFebco 765 pressure vacuum breaker (PVB) assemblies
Service fitStartup & Inspection, Tune-Ups & Repairs

Need us to diagnose it?

If the device is leaking, we can identify the assembly and confirm the correct parts during a visit.

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Related: Tune-Ups & Repairs