you might find that the passages in the fittings are only 1/4-inch in diameter. The solution would be to use 3/8-inch-diameter tubing which will utilize fittings with internal passages that are ...

Pipe/tubing just presses into the fitting and seals. Fittings can be removed and re-used with an inexpensive tool. The 1⁄2-inch and 3⁄4-inch SharkBite Push-to-Connect Couplings are made in the ...