1.47L of either Non-Bio, Colour, or Bio concentrated liquid
Gives ~42 washes according to the bottle.
Now reduced instore and online to £5.00 a bottle.
Picked up the colour & non-bio earlier on instore (Asda)
At £0.12 a wash it's not bad and cheaper then most of the other big brands, including the powder equivalent.
(Mods - move to correct topic if needs be)