Outdoor gas appliance quick disconnect incompatible
There are purposeful differences in gas line connectors between portable PROPANE systems and NATURAL GAS systems typically found in houses when supplied by gas utilities. The reason they are different is because the GAS is very different and they are NOT interchangeable. ANSI Z21.54 is for PROPANE, ANSI Z21.41 is for NATURAL GAS. They don't match up because they are not SUPPOSED to match up.