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Searching for 3/8" BSPT 1/2" OD compression fittings

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Jul 13, 2003
San Jose, CA
I've been looking for these compression fittings for a while now and haven't had any luck finding a supplier. Hoping someone out there might know a place where I can grab some :). I've looked extensively through McMasters' catalog and am pretty surprised they don't carry em'. If somebody knows of a place.... I'd really appreciate a link, thanks in advance.

Pic is from watercoolingplanet for reference: