DURAN® GL 45 HPLC Bottle, clear. with GL 45 HPLC screw cap, with 4 tubing connectors, graduated. Accepts two different rigid or semi-rigid tubing diameters (1.6 or 3.2 mm) Optional sterile pressure equalisation sets (0.2 µm syringe disc filter) Complete system comprising: DURAN® pressure plus+ laboratory bottle with 4-port GL 45 screw cap