DURAN® Aspirator Bottle, unground neck, with side-arm for attachingDURAN Aspirator (levelling) Bottle, unground neck, bottom 11 mm tubing connector, without stopper, 250 mL discontinued item Simple side arm aspirator bottles. Fitted with an integral side arm for the attachment of 9 mm bore flexible tubing, these simple aspirator bottles are available in capacities up to 1 litre. Unground neck to accept rubber stoppers. Features and Benefits: Outlet facilitates attachment of flexible tubing With plain neck and bottom