Countertop reverse osmosis in the U.K?

[jordankingbn2]

Looking to get a countertop reverse osmosis water filter system but haven't found any available in U.K yet, any of you guys know where I can get one?

Needs to be countertop, I can't have one installed
 

Secondly, 
I know the recommended one is APEC, but if I can't find an APEC one for the U.K and have to resort to a different brand, how can I determine if it's as good as the APEC one?

 

thank you