The Eccotemp L5 compression fitting goes on the gas inlet. Please be sure to apply pipe tape before putting on the Eccotemp L5 compression fitting to ensure there are no gas leaks. Hooks right up to the Eccotemp gas regulator hose which is supplied with the unit.
Customer assumes all liability when purchasing replacement parts.
This part was missing on my unit and could not find it except through Ecotemp. Now I have two great functioning units!