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This tube has wall thickness of 1/4". It could handle tight turn without kinks. To hand tight the compression fittings with this soft tube need some strength. I was able to install it without tool nor do I use heat gun. I suggest you pre install the one that has tight space first. In one connection, I have a situation where the tube is installed pretty tight on to compression fitting, but the tube has the tendency to twist the g1/4 thread loose once I let go. In this case, one of the option is to use hex wrench to tighten the g1/4 thread so that it bites into thread thread a bit more to resist the force of the twisted energy from the soft tube.