... ", 3/8", 1/2", 3/4", 1"2. QAC- F.R.L (Three Combination) (1) All Models: AC2000-01, AC2000-02 ... metal hood.Selection Criteria Order example:Model: QAC3000-01QAC- F.R.L(Filter&Regulator&Lubricator), 3000 Body Size, Port Size 1 ... .R.L(Filter&Regulator&Lubricator), 3000 Body Size, Port Size 1/8", Auto Drain Type AC2000-02 Air source treatment Unit (F.R ...