Quote Originally Posted by shazza View Post
Someone correct me if I'm wrong (haven't had much sleep), but I assume the 7/16" ID x 5/8" OD compression fittings should fit whatever works with the 3/8" ID x 5/8" OD fittings ... since the outside diameter is the same...
Logic would indeed dictate that this is the case...unfortunately, real life is not always logical, safer to have someone physically check/confirm.