Review on Effortless Air Line Set-Up: CEKER 1/4" NPT Push To Connect Fittings 6Mm Tube Od Air Line Fittings by Duane Kaul

Any type of angel on this connector will cause it to leak. When I was inserting the tube in to the connector, the quick little pull test to make sure the teeth grabbed ripped all the internals out of the device. i wasted 3 of these connectors because of that. I'm very disappointed. At 9 bucks for 2, I just destroyed 15 dollars worth simply trying to get them all installed correctly. Will not recommend or buy again.