Prier Anti-Siphon Wall Hydrant - Gray Handle - 1/2"Wirsbo - 491 Category_Valve Covers Made of superior strength material

Made of superior strength material for excellent mechanical strength

Use an Air/Vacuum Relief Valve Kit when installation is below soil

attractive design means you won’t need to hide it when mounted indoors

Optional light control button

Flow-Sensing

Prier Anti-Siphon Wall Hydrant - Gray Handle - 1/2"Wirsbo - 491 Category_Valve Covers Made of superior strength materialThe 491 Series Anti Siphon Wall Hydrant was added to PRIER's offering with our 2007 purchase of Mansfields Brass Division. The 491 Series, also available in Lead Free, is similar to Mansfields original patented vacuum breaker design, now manufactured by PRIER in our Kansas City area plant. The 491 Series provides year round water to areas of structures that are prone to freezing, with the added protection of an anti siphon device and backflow