![Wilkins 3/4" 420XL PVB Device [Lead Free]](/web/image/product.product/15071/image_1024/%5B34-420XL%5D%20Wilkins%203-4%22%20420XL%20PVB%20Device%20%5BLead%20Free%5D?unique=56b112c)
Wilkins 3/4" 420XL PVB Device [Lead Free]
34-420XL
Designed for installation on potable water lines to protect against backsiphonage 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.