Scrap it. No one will use a second hand back flow preventer. When fire suppression systems are tested and components like the valve you have fail to meet specs they junk it. Certified companies have to do the work and using a used valve is not going to happen.

Originally Posted by
SDsnakebutt
I have come across a Reduced Pressure Backflow Regulator. Wilkins Zurn 975XL to be exact.
Best way to maximize profits? Take apart and scrapping? Pretty sure that it's mostly brass. Or trying to sell as is.
eBay, Craigslist? Thank-you!
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