Septa N17 Sil bltr/PTFE w, 45°, 1.5 702981

Magnetic screw closures N 18 Thinner septum (1.5 instead of 3 mm), thus safe penetration of the needle and less fragmentation (especially important for SPME applications) Flat surface for the magnet; thus the filled vial cannot drop from the magnet  (In case of over-crimped vials, this can happen due to the convexity of the cap.)

Ready assembled magnetic screw closures N 18 and single septa N 17

Septa are assembled, caps are ready-to-use.

Septa are shown for illustration purposes only, images upside down.

Packs of 100 closures each