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Wilkins 721-20 Bonnet for 720A Pressure Vacuum Breaker

Brand: Zurn Industries, LLC
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$89.29
$66.97
SKU 721-20
In Stock (13)

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Replacement bonnet for Wilkins/Zurn 720A Pressure Vacuum Breaker assemblies (models sized 1/2"-1"). This genuine repair part restores the sealing and pressure integrity of the PVB and is intended for irrigation and other non-potable applications where backsiphonage protection is required.

  • Direct-fit OEM replacement for Wilkins 720A models covering 1/2" to 1" sizes.
  • Durable metal construction (bronze/brass per manufacturer specs) resists corrosion in outdoor irrigation systems.
  • Threads into the valve body for straightforward servicing - no special tools required for removal or installation.
  • Works with standard Wilkins repair kits and parts lists for quick field maintenance.

Refer to the model 720A specification and installation documents before ordering to confirm fit. Keep the model and size of your PVB handy when replacing parts to ensure compatibility.

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Frequently Asked Questions

What models and sizes does the 721-20 bonnet fit?
Fits Wilkins 720A Pressure Vacuum Breakers sized 1/2" to 1". Verify the model stamped on your valve before ordering.
Is the 721-20 an original Zurn/Wilkins replacement part?
Yes. The 721-20 is a genuine Zurn/Wilkins repair bonnet intended as the OEM replacement for 720A units.
Can I install the bonnet myself or should I use a technician?
The bonnet threads into the valve body and can typically be replaced with basic plumbing tools. Follow the 720A installation instructions for safe servicing.

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