31.75mm (1.25″), 38.1mm (1.5″)

Haitian presents a wide range of extruded fin tubes. Our commonplace liner tube OD’s are

15.87mm (0.625″), 19.05mm (0.75″),
22.22mm (0.875″), 25.4mm (1″),

31.75mm (1.25″), 38.1mm (1.5″ extruded fin tubes ).
50.8mm (2″), other sizes can be found upon request

The fin top can differ from 1.3mm to 16mm and include 6, 7, 8,9, 10, 11 fins per inch. Other fin heights are available upon request.