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Lids, Stoppers and Screw Caps for Cuvettes Produced by Starna
The screw caps are for use with Starna's screw top anaerobic cells: Type 1 (macro), Type 9 (semi-micro), Type 18 (micro), Type 3 (macro fluorometer), Type 9F (semi-micro fluorometer), Type 18F (micro fluorometer). The caps are approximately 20mm diameter at the widest point (the rim at the bottom of the cap) and approximately 18.25mm diameter for the ribbed area. The caps come with a silicon rubber insert installed that seals the cell when cap is tightened. PTFE faced inserts, GL14/ST-PTFE, may be purchased separately.

GL14 Screw Caps
Cat Number
Solid Cap for GL14 Screw Top Cells
20mm dia at rim
Septum Cap for GL14 Screw Top Cells
Opening: 9mm dia
Septum Insert for GL14 Caps
12.6 dia x 2.4mm thick
Septum Insert with one side PTFE faced
12.6 dia x 2.4mm thick