Syrup pump for 2L and 4L jugs of syrup. You may need to trim the end for the 2L jugs as they are shorter. For 5:1 ratio start with about 150ml and adjust up/down from there, or about 4-5 pumps in our new large pumps (10 pumps with the old small pumps). The colder and more carbonated your water is the less syrup you'll use. Experiment with how many pumps works for you.
The pump does not take up space in the box and you can still order 4L or 8L to fill the box.
This pump does not work for the infusions.