CR-28 flame cannon
From Wookieepedia, the Star Wars wiki.
The Merr-Sonn Munitions, Inc Model CR-28 flame cannon was the heaviest of flame projectors. Chiefly a military weapon, the 28 model needed to be fired from a stable, unmoving platform, mounted on vehicles or fired from a tripod stand. It used a specialized fuel canister for ammunition. Though the weapon was reserved for close quarters, the effects were devastating.
Czerka Arms produced a similar flame weapon, designated the CZ-28 Flamestrike.
