Retro-fit repair kit for the 1/2 - 3/4" Watts 800M4 Series pressure vacuum breaker (PVB) backflow preventer. This kit is designed to retro-fit your Watts 800M4 to a freeze resistant (800M4-FR) model. This kit contains everything needed for the conversion. Please note, this converts it to "freeze resistant", Not "freeze-proof." Your device should be drianed and winterized in freezing conditions. Genuine Watts repair kit.
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PLEASE NOTE: Brooks Equipment only sells products to Fire/Life Safety Equipment and Service Companies. We do not offer products for direct purchase to private commercial or individual users.
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