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Your cart is empty.The Zurn Wilkins 350 Double Check Backflow Preventer provides low health hazard protection in non-potable applications. The EZSwap® Pressure Vessel provides safe and easy line flushing, quick winterization, and simple maintenance and repair.
donald james perry
Reviewed in the United States on June 20, 2024
Great value compared to others. High quality brass. Easy to install. Performs well, doesn’t leak, and fit perfectly.
Happy in Oklahoma
Reviewed in the United States on December 30, 2024
My husband installed it on our sprinkler system and seems to be doing it’s job and working well.
Steve Van Lerberg
Reviewed in the United States on October 13, 2024
I had to return this item and get a different model of the same thing which is model# 350xl. My local water district would not approve this one. I think this one would be ok for lawn or fire sprinklers.
piratemama
Reviewed in the United States on November 8, 2023
Quality product with easy to read and follow directions for installation. Helpful arrows on the product to demonstrate correct pathway for water flow. Advises to install 12 inches above ground. Feels solid and performs as expected.
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