hey there, the miniworks only works with nalgene wide mouth bottles, and msr dromedary and cloudliner hydration systems. As far as I know, there are no adaptors or any means to attaching it directly to a smaller bottle.
imo, dont get one! I hate mine. Its heavy and It clogs very quickly, even when you use a coffee prefilter attached to the intake. Then you have to take it apart and scrub it in the field, and worry about cross contamination with your dirty hands etc. When its perfectly clean, its fairly fast, pumping out 1 liter in about 1 min. But when it starts to clog, mannnn like 1 liter in 5 mins, and a very sore forearm. You'd be better off with a gravity filter (make your own, for example, you can use a nalgene soft cantene+sawyer in line filter+ msr dromedary cap + tubing from an aquarium store) or buy some of the ones on the market. Better yet, get a steripen and use aquamira tabs/drops as backup