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Conbraco 4A00407 PVB Float & Bonnet Kit, 3/4 in (Top Half)

Brand: Conbraco Industries
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$138.23
$103.67
SKU 4A00407

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Replacement top-half float and bonnet kit for Apollo/Conbraco PVB4A (4A-500 series), designed for 3/4 in nominal valves. This complete repair kit restores the upper internals of the Pressure Vacuum Breaker and includes factory-compatible components for reliable backflow protection.

  • Kit contents: bonnet assembly, bonnet O-ring, poppet assembly, float assembly, float cage, canopy and O-ring lubricant.
  • Compatibility: fits Apollo/Conbraco PVB4A (4A-500) models 1/2"–3/4" and standard 3/4" nominal valves.
  • Materials: steel, plastic and rubber components for durable operation in irrigation and potable-water applications.
  • Key features: modular check valve cartridge with captured spring, reversible silicone seat disc, built-in freeze-relief, and ball valve shutoffs with stainless steel handles.
  • Documentation: includes links to IOM and submittal sheet for service, testing and parts diagrams.

Designed for technicians and maintenance teams, this kit provides the essential upper-half parts needed to return a PVB4A to service. Use the manufacturer documentation for installation and pressure testing; replace only with compatible parts to maintain approvals and performance.

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Frequently Asked Questions

What models does this kit fit?
Fits Apollo/Conbraco PVB4A (4A-500 series) top-half assemblies for nominal 3/4 in valves; also covers 1/2"–3/4" upper-half variants.
What is included in the kit?
Bonnet assembly, bonnet O-ring, poppet assembly, float assembly, float cage, canopy and O-ring lubricant.
Can I install this kit myself?
A qualified technician should perform installation and pressure testing. See the included IOM and submittal sheet for step-by-step instructions.

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