I bought one of these in Sainsbury's yesterday. On sale for £2, reduced from £6. Includes jug and one Maxtra filter.
Found in the large Middlesbrough store - not sure if this deal is nationwide.
Easy- flip top lid
Soft grip handle
1.5L filtered water capacity
2.6L total water capacity
Water level indicator
Dishwasher safe (excluding lid)
It's £20 on Amazon: http://www.amazon.co.uk/Brita-Fjord-Midnight-Water-Filter/dp/B0017J5HII
Hopefully this will stop my water from tasting like a blackboard :D