Where to buy flubenvet 2.5% online?

I have used the 1% before, I think the 2.5% is in large quantities for poultry farmers and breeders. 

This is the site I bought mine from but they only do the 1%
www.animeddirect.co.uk

Thanks for the replies. Could you tell me how long the 1% 60g stuff will last me for a flock of say ten chickens?
 http://www.animeddirect.co.uk/flubenvet-1-wormer-60g.html

I had heard the 1% was a little on the weak side and didnt last as long as the 2.5% stuff. Im sure I read on a forum that someone thought the 1% stuff wasnt cost effective or something.

Hyperdrug want £67.99 excluding postage!!!!  Pet drugs online is only £41.50 including postage for the same item! Crazy.

I have always used the 2.5%. It is much better value than the 1%. I think a box of the 1% is around £20?? for just 60g. Its a rip off. You have to use more & spend more to do the same job. Flubenvet does keep for ages, never had any trouble with using it after 2 yrs +.

To worm a flock of 10 average size chix I weigh out 4g of 2.5% flubenvet to 15kg of feed. If you don't want to bother weighing it out, I have just put a small pinch of it in a 7kg feeder. Mix it up in the pellets, job done. I do it every 3 months. Never had worms & it's the only wormer i've ever used. Banties I half that amount.