Overall quality is fine. Generally, my connections don't leak; I installed 5 Equal-T fittings. However, using Rapidair's instructions to tighten the nut 3/4 to 1 full turn after hand tightening caused my stationary wrench to puncture the fitting. They aren't cheap, $15-20 a piece. Looks like I have spares in stock in case the other one ever breaks down.
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