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Zurn Wilkins RK1-720A repair kit components laid out on white background: poppet, spider assembly, spring, bonnet washer, O-ring, and mounting hardware.

Wilkins RK1-720A 1" Repair Kit for 720A Pressure Vacuum Breaker

Brand: Zurn Industries, LLC
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$162.80
$122.10
SKU RK1-720A
In Stock (28)

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Complete repair kit for Wilkins Model 720A pressure vacuum breakers (PVB). The RK1-720A is compatible with 1/2", 3/4" and 1" 720A assemblies and provides all primary replacement components for bonnet and poppet repairs, allowing quick field servicing to restore reliable backflow protection.

  • Compatible sizes: 1/2", 3/4", and 1" Model 720A PVB assemblies.
  • Kit contents: poppet assembly, spider assembly, spring, plastic washer, bonnet washer, O-ring, guide and hardware for bonnet and canopy.
  • Restores proper sealing and operation to extend service life and prevent backsiphonage into the potable supply.
  • Industry listings: ASSE, IAPMO and CSA where applicable for the 720A series.
  • Durable, corrosion-resistant components designed for standard irrigation conditions and winterization protection when properly maintained.
  • Simple field installation when following the manufacturer’s installation and repair instructions.

Intended for irrigation and other non-potable commercial or residential applications, this repair kit supports routine maintenance and most freeze-damage repairs unless the valve body or integral shutoff components are cracked. Consult the specification sheet, repair parts guide, and installation instructions before beginning service. Manufacturer resources contain diagrams and torque details to ensure correct assembly.

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Frequently Asked Questions

What model sizes does this repair kit fit?
Fits Wilkins 720A pressure vacuum breakers in 1/2", 3/4", and 1" sizes.
What parts are included in the RK1-720A kit?
Includes poppet assembly, spider assembly, spring, plastic washer, bonnet washer, O-ring and guide hardware for bonnet/canopy repairs.
Can this kit repair a freeze-damaged 720A unit?
It repairs most freeze-damaged 720A PVBs unless the ball valves or valve body are cracked, in which case assembly replacement is required.
Is this kit listed to industry safety standards?
Yes. The 720A series and repair parts are listed to ASSE, IAPMO and CSA standards where applicable.

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