Wilkins 420 Pressure Vacuum Breaker Assemblies

Wilkins Series 420 pressure vacuum breaker assemblies, manufactured by Zurn, are designed for installation on potable water lines to protect against back-siphonage of contaminated water into the potable water supply. Supplied with an integral anti-freeze relief valve to reduce the risk of valve damage under intermittent, non-seasonal freezing conditions. Designed for use under continuous pressure. Assembly shall provide protection where a potential health hazard exists.

Manuals -


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  • 1/2" Wilkins 420XL Pressure Vacuum Breaker Assembly w/ Integral Anti-Freeze Relief Valve (Lead Free) View Specs

    $99.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • 3/4" Wilkins 420XL Pressure Vacuum Breaker Assembly w/ Integral Anti-Freeze Relief Valve (Lead Free) View Specs

    $93.95 / each

    In Stock at Supplier! (25 Available) Ships in 2-3 Days
  • 1" Wilkins Lead Free 420XL Pressure Vacuum Breaker Assembly w/ Integral Anti-Freeze Relief Valve View Specs

    $102.95 / each

    In Stock! (44 Available) Ships in 24-48 Hrs
  • 1" Pressure Vacuum Breaker Repair Kits for Model 420R View Specs

    $13.95 / each

    In Stock! (1 Available) Ships in 24-48 Hrs
  • 1" Pressure Vacuum Breaker Repair Kits for Model 420FK View Specs

    $19.95 / each

    $191.50 / box
    10 x $19.15

    In Stock! (14 Available) Ships in 24-48 Hrs
  • 1/2" to 3/4" Pressure Vacuum Breaker Repair Kits for Model 420FK View Specs

    $15.75 / each

    Non-Stock Item Allow 7-10 Days to Ship Out
  • RK12-420 Repair Kit for 420 Series View Specs
    • SKU: RK12-420
    • Brand: Zurn

    $27.55 / each

    In Stock! (3 Available) Ships in 24-48 Hrs
  • 1/2" to 3/4" Rubber Repair Kit for 420 & 420XL Series View Specs

    $13.95 / each

    Non-Stock Item Allow 7-10 Days to Ship Out