Gas-It 11kg refillable bottle fitted with an auto change over valve to work with an exchange Calor bottle. £11 to fill up with LPG auto gas. #calibrecaravanservices
1st service on a 2019 motorhome. Failed gas tightness test. The crack in the nut was only visible once I tried tightening the join. Safely repaired once the habitation service was complete.