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Dielectric fittings in Hydronics copper to black

I am presented with my newest "promotion" to outside sales for a local Wholesaler.  This question was posed to me today.. again.  Before my wholesale career I was an installer for 20 years.  I never used dielectric unions in a closed loop system with the proper tubing installed.  Does anyone "Dan" have anything in writing!!!!

I have a large customer that has a new employee who was taught like me and is trying save the company lots of $$$ on a project.  All I have to do is show it to them in writing of an official document or training book!!

All help is appreciated! Reply Edit


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