OEM Zurn Wilkins 720A Pressure Vacuum Breaker Rebuild Kit 1/2" to 1" WKRK1-720A

Complete internal rebuild kit with all components. (See list below) 

All original OEM parts. 

Part Number References: WKRK1-720A, RK1-720AB, 

Kit includes:

• O-ring
• Flat Washer
• Spring
• Check Valve -Lower and Upper
• Brass Bonnet
• Canopy
• Screws

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