Hia there, my local had a load of these in the storefront.
Seems like a good price @ 50p a litre. Never seen it sold in 1L bottles but hey they look pretty good lol... (Although maybe not stick-in-your-pocketable)
I think it is on all the different ones although I could only find Pepsi Max and Pepsi - but hey Pepsi Max is the best lol.. Also 7UP and tango variants are included in the offer
Assuming its a Nationwide thing?