Tri-Clamp (TC) fittings are referred to by convention as 1 1/2", 2", etc. 1 1/2" TC fittings connect to 1" or 1 1/2" O.D. tube sizes. 2" TC fittings connect to 2" O.D. tube size only.
Specification
Material: polyethylene tubing Max. inlet pressure: 14 bar (200 psi) I.D.: 6.3 mm (0.25 in.) L: 1.83 m (6 ft)