Product review (5 stars): Don't forget the gas regulator for natural gas operation. I love this gas cooktop.
If you plan to use this with Natural Gas instead of Propane, you will need to purchase a natural gas regulator separately.

Windmax 5/8" FPT Gas Pipe In/out,1/2" PSI (3.5kPa) LPG10" WC & NAT 5" WC Natural Gas Pressure Regulator.

I originally installed this with the propane setup with a propane tank in the cabinet under the counter top. The propane bottle (tank) had its own regulator.

When i converted to the natural gas (piped into the house from the gas company), I needed to add a natural gas pressure regulator which is not included with this gas stove top.

If you read the description/specifications carefully, they do state that the natural gas pressure regulator is NOT included. It is not expensive ($12.99).

I recommend having it professionally installed.

I love this stove: