Mitsubishi MLS143812T-15 - 1/4\ x 3/8\" x 15' Line Set with 1/2\"" Insulation
This product is a brand new genuine Mitsubishi MLS143812T-15 - 1/4\"" x 3/8\"" x 15' Line Set with 1/2\"" Insulation.
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I bought this insulated line set to install a Mitsubishi mini-split heat pump system and overall was very happy with it. One of the 3/8" flares broke upon tightening to the specified torque of 25 ft-lb, but I almost wondered if this was a fault in the Mitsubishi manual and not this product's quality, because the instructions also had the wrong nut size listed in millimeters for the 3/8" flare nut (so why should I believe their torque specification is correct?). After re-making the flare and tightening to ~20 ft-lb instead, there were no problems. Ultimately, even though one of the pre-flared connections broke, I was happy with this product because it was priced where I would expect this item to be priced instead of the 3X higher price it was listed at from other sellers.