Image 1 of 1 Calor Propane 0.5bar-1bar 10 Position High Pressure Regulator £19.99 High pressure adjustable 0.5 - 1bar Propane gas regulator (single stage) allowing for a more precise gas flow when needed. Quantity: Add To Cart Added! High pressure adjustable 0.5 - 1bar Propane gas regulator (single stage) allowing for a more precise gas flow when needed.