Details

Automatic changeover regulators ensure first stage pressure reduction and a continuous gas supply to the installation. The changeover automatically switches to the reserve cylinder when the pressure falls in the supply cylinder. The indicator arrow turns red when the system has changed over and points to the empty cylinder. The indicator turns white when turned towards the new service cylinder. 

A Twin stage, twin cylinder installation gas regulator kit, Ideal for gas fires, cookers, hobs and ovens etc. For use with propane gas only.

UK Gas Safety Regulations state that in any domestic installations of over two cylinders an OPSO device is required
For Use in the UK and Northern Ireland.

Ref: TPA10