... refrigeration and air conditioning 2. for tube 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8 ... -999R, CT-312, CT-209, for tube 1/4, 5/16, 3/8, 1/2, 5/8, 3/4, 7/8 ... inch and 6, 8, 10, 12, 16, 19, 22 mm, packed in blow-mold casePrimary Competitive Advantages:Quality Approvals ...