For 243 thread lockers; fits 50 and 250ml. vials. The LOCTITE Pro Pump enables clean; efficient and controlled dosing of LOCTITE threadlockers. Suitable for both 50 ml and 250 ml bottles and allows better glue delivery straight from the bottle; prevents overdose. One push of the button produces one drop Loctite at a time. Does not require installation or assembly and features a nozzle with three possible positions; 45° down; 45° up or horizontal. Nozzle folds 90° down for storage. Very small compact and light.