Product review (1 stars): Plastic Always Leaks
I don't know why I keep trying to use plastic for supposedly watertight connections. The brass ferrules on this kit deform to the shape of the compression fitting at the the saddle tee, but never stop leaking/seeping despite my having tried twice with new ferrules and compression nuts. However , the most important deficit is that the small hole made in the supply line by the saddle tee " needle" does not allow enough water to flow if you have , in addition to an icemaker , a water dispenser in your fridge. THis observation has been confirmed by some plumbing supply countermen. Finding the ole brass 1/2x1/2x14 compression union tee is well nigh impossible . Watts makes a nylon one that leaks. There are workarounds that use tees- unions and all metal valves - Sharkbite works.