Filling/venting-screw closure/HDPE closurel dia. 53mm, 6mm OD

Filling/Venting Closures, white polypropylene, TPE gasket, TPE port caps, inside and outside 2 x NALGENE 50 platinum-cured silicone tubing each (ID 6.3 mm), closure 53 B All-plastic closures for aseptic liquid transfer of media, biological reagents and chemicals to and from NALGENE carboys. Can be used with any large NALGENE carboys or bottles that accept 53-mm (53B) closures. Include two pieces NALGENE 50 platinum-cured silicone tubing, Cat. No. 8060, for drop tube and splash guard. Can be used with NALGENE Carboys with a properly set up peristaltic pump. Autoclavable