HPLC capillaries are used in the high-pressure part flow path to make connections between different modules and column. All Agilent HPLC capillaries are engineered and manufactured to provide the best fit to Agilent instruments and columns to protect the integrity of your results at every step of your LC flow path. Stainless steel capillaries with high flexibility and durability are ideal for most standard applications. Capillaries made from MP35N, PEEK-lined stainless steel and titanium are inert and corrosion resistant, suited for bio applications. All capillaries are color-coded to help you quickly identify the capillary id.