Gas canister (Fallout 4)

A gas canister is a miscellaneous item in Fallout 4.

Characteristics
If the gas canister is shot at, it will explode with a small fireball after a delay of a few seconds. If the player squats on top of the gas canister as it explodes, it can cause minor damage.

Locations
Two gas canisters are found in Diamond city:

Going into mayor McDonoughs office taking a left through the double doors and then in the first room on the right they will be on the right of the dresser with the telephones.

Not sure if they respawn