PRO1F20CS 20" Click Seal Braided Stainless Steel Hose Faucet Connector (38" Compression x 1/2" FIP)

These work great for replacing supply lines underneath the kitchen or bathroom sinks where space is limited. Just tighten by hand till it clicks and you're done. No leaks.

Why bother to write about or get excited about a bathroom or kitchen supply line. In my defense you are reading the review right haha so I will continue. I am tired of being unable to get the installed water line off of the installed bathroom or kitchen sink. Very tired of that and often now the way I do it is to just place a sawzall blade beween the faucet and the top of the counter and cut the whole faucet off. Which seems kind of excessive to some. The end of this supply line which goes up under the sink is large. You can grasp it with your hand. You can turn it with your hand. Hear when it clicks so you know it is on tight enough. Which means it will not be too tight when you need to change it later. For me that makes this product stand out and is the reason I switching over to this product. They make a toilet supply line which has the same click feature, which, again, I like. You might like that one for the same reason but I do not view it as as critical because the toilet line is usually more accessible. The reason I am not sure to recommend this with 5 stars is because in my experience, either 12" or 9" are common lengths for this product. So if the 9" does not work for you then to go up to the 12". If you have a 12" install and it does not work for you, then, with this product, I believe, you need to go to a 20" line. If you need to use a 20" line to supply a toilet you better find the plumber who installed this for you.