Ukuvalwa kwe-POSYPROPYLENENENENENENE SNAP-TOP enomgodi wesikhungo se-6mm, kufaka phakathi i-PTFE \
silicone Septa. Ukusebenzisa nge-11mm snap-top vials. I-Snap CAPS inikeza uphawu oluphephile, inciphisa ukuhwamuka ngisho namasampula aguqukayo. I-Snap Ring Ukuvalwa kwe-N11 kufanele isetshenziswe kuphela ku-HPLC, njengengcindezi yokuhlangana nesikhathi se-Septum ngokumelene nezikhonkwane ezine ku-cap akufinyeleli ngengcindezi yesikulufa noma ngokulibala.