your supermarket may have it in bottles....Tescos/Waitrose/Sainsburys.......w
e
have a few establishments that sell it in draught, but I am serious about the kick and their Perry is even stronger.
they don't sell rattler in supermarkets in kent. tred to get some sent up there for for my family as a present but can't. they (family) have to order it and then may be supplied as special order but no guarantee. they (family) particularly like the pear version. will add to their standard order of ann's pasties and gwavas clotted cream for when visiting.