Bophara ba ka ntle ba li-tubing tsa PEEK ke 1/16”, bo loketseng boholo ba tlhahlobo ea chromatography ea mokelikeli e sebetsang hantle. Chromasir e fana ka 1/16” OD PEEK e nang le ID 0.13mm, 0.18mm, 0.25mm, 0.5mm, 0.75mm le 1mm bakeng sa khetho ea bareki. Mamello ea bophara ba kahare le kantle ke ± 0.001”(0.03mm). Sehahi sa li-tubing se tla fanoa mahala ha PEEK e odara li-tubing ka holimo ho 5m.