How to install a gas shut off valve. @GrantKeysProperties

Here is a few different shut offs you could use from amazon that I found and if you use my links, I get a small commission and would greatly appreciate it! Thank you!

3/4 in shut off female threaded on both ends! https://amzn.to/47VMwva
1/2 in shut off female threaded on one end and male on the other! https://amzn.to/4bqhsqg
1/2 in shut off female threaded on both ends! https://amzn.to/3Ouax5s
3/4 in T shut off! https://amzn.to/3OsRSY0
1/2 in T shut off! https://amzn.to/3SMFe8U
1/2 in to 5/8 in appliance shut off! https://amzn.to/3UjTHdw
1/2 in to 3/8 in appliance shut off! https://amzn.to/42qH7Lx
3/4 in to 1/2 in appliance shut off! https://amzn.to/3utn8PD
3/4 in to 5/16 in appliance shut off! https://amzn.to/4boDKJa