ICOOL 16 Ft. Mini Split Line Set, 1/4" & 1/2" O.D. Twin Copper Pipes, 3/8" Thickened PE Insulated Coil Copper Line for Air Conditioner HVAC Refrigeration and Heating Equipment, with Fittings

Perfect line & flares, for 4" wall tube, tape wraps 8', Wire is 22" short. Buy wire if you do not cut the line-set and make sure it is perfect flare if you do! Micron gauge & high quality 1/4, 5/16 core removers & hose is a must! Make sure to follow the "school video" on proper procedures (pull to 120 microns with 1micron/min. increase at finish), 4X pull is normal. Perfect result and longest and highest efficiency will be achieved. 4th set (prof. cut the first 3) perfect. 22" from indoor to their line-sets & 16" up into the outdoor. Measured 5 COP annual avg. on -22F type splits in upper NY.

This is a 16ft extension for my mini split system, when compared to the original line set that came with my system, I think this is a better set. The insulation is more premium ,the drain line is more heavy duty. I had no problem with the installation. This package comes with all the necessary part for my extension. Happy with my purchase.

This was a replacement for a smaller lineset. I upgraded the head unit and it required 1/2" line. This was better copper and better insulation than what came with the unit originally. I will be getting all of my linesets from here from now on.I never give a review for what that is worth.

This seems like half the thickness of standard refrigeration tubing. If you have to make tight radius bends it’s better to fabricate them and braze them together.

High quality lines with perfect flares. Highly recommend. Very good price for quality lines.

Installed my fair share of line sets, this stuff kinks very easy!!

Great fit for Mitshubshi 15,000 btu heat pump .mini split.

Ends were not tightly sealed, which often causes the following issues:(me: former Refrigeration Service Society president, 3+ decades training/experience)1. Atmospheric moisture can collect inside unsealed tubing, especially in humid locales. This moisture can be removed with a vacuum pump with a very high micron rating. Be aware that the cheapie consumer level pumps will NOT pull deep enough of a vacuum to vaporize and remove liquid water, you'll need to spend $200+ for it to be able. Worse still. larger amounts water can get inside the tubing if the package is left out in the rain or snow, if that happens you should NOT use it for refrigerant piping.2. Even very tiny bits of solid contaminants can cause malfunctions in refrigeration systems. Tubing should be well sealed so small bits of dirt, dust, hair, cardboard, fly poop or whatever can't get inside. Good service practice for refrigeration and HVAC tech's is to immediately reseal to an airtight condition the ends of any refrigerant tubing after a portion has been used (or packaged).3. Soft copper tubing tends to harden when exposed to atmosphere. More exposure = more stiffness, making it difficult to bend without kinking... so yet another reason that both ends should always be kept airtight.