Zurn Wilkins Brass Bonnet 1-1/4" for Model 720 (724-20-030F) - 724-20-030F
Replacement brass bonnet (part 724-20-030F) for Wilkins Model 720 and 720A pressure vacuum breaker (PVB) assemblies. Designed for 1-1/4" inlet sizes, this bonnet provides a durable, serviceable cover for internal check and air inlet components used in irrigation and landscape systems.
Installation & documents: Replace bonnet following manufacturer installation and maintenance instructions. Specification sheets, repair parts lists, and installation guides are available on this product page to ensure correct servicing. For repairs, order the appropriate internal kits (check assemblies, seals, springs) separately.
Features
- Material: solid brass construction for corrosion resistance in irrigation applications.
- Compatibility: fits Wilkins Model 720 and 720A PVB assemblies in the 1-1/4" size.
- Function: bonnet (cover) for access to internals during repair and maintenance.
- Part number: 724-20-030F — OEM equivalent for Wilkins repair parts kits and assemblies.
- Use: intended for non-potable residential and commercial irrigation systems requiring backsiphonage protection.
What our Experts Think
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Genuine 1-1/4" brass bonnet replacement designed for the Zurn Wilkins Model 720 Pressure Vacuum Breaker.
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Precision-machined lead-free brass construction ensures durability and long-term corrosion resistance.
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Restores proper sealing and structural integrity to maintain reliable backflow prevention performance.
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Engineered for accurate OEM fitment, reducing installation time and compatibility issues.
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Ideal for maintenance, repair, and refurbishment of existing PVB assemblies.
- Helps extend the service life of the system without requiring full valve replacement.
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Designed to meet original manufacturer performance standards for safety and compliance.
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A cost-effective solution for professional plumbing and irrigation system upkeep.
Q&A
Maintenance Tips
- Inspect bonnet regularly for leaks, cracks, or corrosion.
- Ensure tight, secure fit to maintain proper sealing and system integrity.
- Replace gasket or sealing components if any signs of wear or seepage appear.
- Clean exterior surfaces to prevent buildup of dirt or mineral deposits.
- Use compatible replacement parts only to maintain Model 720 performance standards.
- Re-torque fasteners periodically if required by manufacturer specifications.
Damage 
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