Anyone familiar with these?

[Ammoholic]

Last week I bought a pile of “stuff” at a sale and these were in it....4 of them.
Not knowing what they were, I hit the google 😁

As much as $248 a piece! Hunh/wha?

Anyone ever seen them used and if so for what application/purpose?

https://carolinafirearmsforum.com/index.php?threads/4-watts-n9-back-flow-preventer-b64-8-max-150-lbs-max-140f-2-5”.88939/

 

[BlackGun]

Never seen one that high. But it is the highest priced retailer in the history of material. MSC is a catalog company tailored to industry with more money than brains.

Back flow preventers keep water from flowing backwards and contaminating the water supplied. That one is double check valved as stated which is over kill. You could ebay it and maybe an industry could use it in a process such as chemical water treatment.

 

[Dave951]

Used in public toilet urinals as part of the flush valve assembly

 

[Ammoholic]

I searched good old ebay and found them as low as $40.

anyone on here need these 4? If so just name your price and they are yours. Hate to just toss them.

 

[Ammoholic]

No one on here in a business that could use them?

A shame as costly as they are...someone speak up if they want them.