As far as I understand, the ridges on gas regulators are there to create a tight fit and seal it. The jublilees are there to stop them coming off easily. Personally I would get the right hose for the regulator. There is no room for a "that'll do" mentality when it comes to gas!
I agree completely which was why I was so concerned. The 8mm nozzle IGT regualtors do however say that they can be used with 10mm hose so that is what we'll go with.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets