1/2″ – Second Check Module for the 4A-200 Reduced Pressure Zone {OR} First or Second Check Module for the 4A-100 Double Check {OR} Check Module for the 4A-500 (1/2″ – 3/4″) Pressure Vacuum Breaker Series
Kit Includes: Check Assembly, Cover O-Ring, Check Seat O-Ring, Bonnet O-Ring
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