I use the blue race cask ventilators (not CO2- just the little plastic device with ballbearings in that one uses instead of a hard/soft spile- they are CAMRA approved). I have 3 that I got from a1barstuff – they are great. I ordered three more and they are different to the original ones I got, although they have the same pat no 2199815. The originals are chamfered and so ‘screw’ easily in to the tut but the new ones have a ridge. The size hole in the tut would be smaller to take this new one. Any one any experience of similar, please?
Many thanks. Enjoy the Bank Hol! Anni :-/