Hagro Stainless Steel Rapid Cleaning Drinking Troughs
They have a patented large exit bung which replaces the more typical rollover trough that so frequently leaks and sprays water over adjacent cubicles after a few months of installation. This quality trough with no moving parts can be emptied and cleaned in seconds, with the bonus of stainless steel it stays clean and lasts a lifetime.
Sizes vary and are typically:
1.4mts
1.9mtrs
2.3mtrs
3mtrs
These drinkers are recommended to be bolted to the wall to the height you desire, although can come with legs if your set up allows, the base of the trough is at a slight slant so it makes cleaning them out easy work with the water flow draining to the plug.