High pressure adapter for Q-Tube^™

High pressure adapter for Q-Tube^™, for 12 mL Q-Tube, max. pressure 180 psi

High pressure adapter for Q-Tube^™, for pressure tubes with 38 mm O.D. round bottom, fits QianCap-15 and 25

High pressure adapter for Q-Tube^™, for 35 mL Q-Tube, max. pressure 180 psi