Posted: 19/02/2014 at 18:37
Dave, I think biofreak is talking about walk-in polytunnels. It's unfortunate that both things are commonly referred to by the same name.
Biofreak (and anyone else contemplating buying one), check that replacement covers are available before you buy a particular brand of polytunnel. However, there's a fair chance that a cover for a different make of the same tunnel size will fit reasonably well but no guarantee.