Prier - 478 - Anti-Siphon Wall Hydrant valve Spaces without access to ductwork

Spaces without access to ductwork or venting

metal surfaces

Programming the WR2 is simplified for fast set-up

000 BTU per hour

Efficient design – combines filtration and pressure regulation in one compact unit with fewer connections

Prier - 478 - Anti-Siphon Wall Hydrant valve Spaces without access to ductworkThe 478 Series Anti Siphon Wall Hydrant was added to PRIER's offering with our 2007 purchase of Mansfields Brass Division. The 478 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 478 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