This is the exact fluid specified and sold by Land rover as part number LR003036 and LR054941.
 
Land Rover and their suppliers sell this in 300ml containers at around £24. To refill a Haldex you require 700-750ml to do it correctly, meaning you have to buy 3 containers at nearly £100.
We supply this exact fluid in 750ml containers for the price shown, meaning a great saving and the convenience of having the exact amount required.