Item #	Tube Outer Diameter
FG-F-1	1/16 in
FG-F-2	0.125 in
FG-F-3	3/16 in
FG-F-4	1/4 in
FG-F-5	5/16 in
FG-F-6	3/8 in
FG-F-8	1/2 in
FG-F-10	5/8 in
FG-F-12	3/4 in
FG-F-16	1 in
FG-F-11	1.1 in
FG-F-22	1 3/8 in
FG-M-4	4 mm
FG-M-6	6 mm
FG-M-7	7 mm
FG-M-8	8 mm
FG-M-9	9 mm
FG-M-10	10 mm
FG-M-12	12 mm
FG-M-15	15 mm
FG-M-20	20 mm
FG-M-26	26 mm