Stoppered Calcium Chloride U-Form Absorption Tube, 100 x 12mm, Borosilicate Glass

This Calcium Chloride U-form absorption tube is made from borosilicate glass and measures 100 mm in length with a 12 mm diameter. It is designed for drying gases by passing them through a desiccant such as calcium chloride contained within the U-shaped tube. The tube features side tubes with limbs closed by hollow ground-in key stoppers. Rotating the stoppers opens or seals the side tubes, allowing controlled gas flow through the desiccant during drying operations. The stoppered design prevents moisture from re-entering the system when not in active use.