688 Gas Collecting Tubes, with 2 three way double oblique bore stopcocks.

Gas Collecting Tubes, "JSGW", with two three way double oblique bore stopcocks one on each side.

Cat. No. Capacity
  ml.
688/1 15
688/2 30
688/3 70
688/4 100
688/5 250
688/6 500

689 Gas Collecting Tubes, with 2 three way double oblique bore, PTFE key stpk .

Gas Collecting Tubes, "JSGW", with two three way double oblique bore, PTFE key stopcocks one on each side.

Cat. No. Capacity
  ml.
689/1 15
689/2 30
689/3 70
689/4 100
689/5 250
689/6 500

690 Gas Collecting Tubes, with 2, two way stpk.

Gas Collecting Tubes, "JSGW", with two, two way stopcocks one on each side.

Cat. No. Capacity
  ml.
690/1 125
690/2 250
690/3 500

691 Gas Collecting Tubes, with 2, two way PTFE key stpk.

Gas Collecting Tubes, "JSGW", with two, two way PTFE key stopcocks, one on each side

Cat. No. Capacity
  ml.
691/1 125
691/2 250
691/3 500

911 Absorption Vessel, with 3 valves, for KOH.

Absorption Vessel, "JSGW", with 3 valves, for KOH.

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