From above....
Check this out:
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I have some of these. Used them as transfer pumps. Nice little gear pump.
Don't like to run em continuous...they run a bit hot for my liking. They use 3/8 inch fittings. The home Depot fittings fit.
I think $300 is a bit pricey though.
Try here...
https://m.aliexpress.com/item/32740558700.html
$100 ballpark. By the time you throw shipping in.
Betcha this is where they get 'em.
There are several vendors selling the same pump from what I see. Different pricing for pump and shipping.
I have done a lot of business through AliExpress. Most of the industrial stuff has been on the up and up, but most of the cheap fashion stuff meant for retail resell has been a disappointment to me.