Working instructions:
1. The over flow device is designed inside, if the grill connection loose, the gas will be shut off.
2. You have to connect the grill well first then open the gas, or the safety device will work and no gas come into the grill
3. The hose connection male adapter is only suitable for 1lb regulator (1'-20 unef female connection), it cannot connect a low pressure regulator with QCC or pol inlet fitting.
4. The needle valve is good for adjust the gas flow, if you want to stop one of grill, just close the needble valve , and if you do not use it for long time, close the cylinder valve as well.