34 products
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Double Check Backflow Preventer Valves are designed to prevent contamination of the potable water supply due to back-siphonage or backpressure from substances that are objectionable to the potable water supply, but non-health hazards.


SKU: 00-4ALF103A2F


SKU: 00-4ALF104A2F


SKU: 00-4ALF107A2F


SKU: 00-4ALF106A2F


SKU: 00-4ALF105A2F


SKU: 00-4ALF10902


SKU: 00-4ALF10903


SKU: 00-4ALF10909


SKU: 00-4ALF10002


SKU: 00-4ALF10009


SKU: 00-4ALF10003


SKU: 00-4ALF108A2F


SKU: 00-4ALF10A02


SKU: 00-4ALF10A03


SKU: 00-4ALF10A09


SKU: 00-4ALF10C09


SKU: 00-4ALF10C03


SKU: 00-4ALF10C02


SKU: 00-4ALF10E03


SKU: 00-4ALF10G02


SKU: 00-4ALF10G09


SKU: 00-4ALF10H02


SKU: 00-4ALF10H09


SKU: 00-4ALF10E02
