What size fittings do I need?

For most fire pits, fittings tend to be 1/2" in diameter. If you have a high capacity setup, which is more common for fire pits that use Natural Gas or built-in Propane from a meter and have large burners, you may opt to use the 3/4" diameter fittings. If you're unsure of which you need, your installer should be able to assist you.