Lexen GP27 Manual Wheatgrass Juicer 
At Brow Farm we have found this is the best juicers to juice your wheatgrass.

The Lexen Healthy juicer is a compact manual juicer, which works by crushing the
fibre to extract juice from Wheatgrass and other leafy vegetables.
 We don't  recommend this juicer for hard vegetables and soft fruits. 
The Lexen Healthy juicer is rugged, efficient, and best of all, easy to use and clean!
It effectively cold presses the wheatgrass, usually giving higher
juice yields but preserving the natural flavour and nutrients.
This ensures you get all the benefits of freshly pressed juice without all the hassle.