The Gk7 Cryocooler was a cooling unit that was used to cool the E-Web (15), a heavy repeating blaster manufactured by BlasTech Industries. With the Gk7 Cryocooler equipped, the E-Web (15) could fire for up to one standard hour at a sufficient distance to discourage even the most fearless of armies.
Behind the scenes
The Gk7 Cryocooler was first mentioned in the new Star Wars Canon in Blasters and Firearms, a booklet in a series of canon reference booklets titled the Star Wars Encyclopedia, published by De Agostini on February 23, 2021. The Gk7 Cryocooler originated it the Star Wars Legends continuity, where it was first mentioned in The Last Command Sourcebook, a hardcover supplement for Star Wars: The Roleplaying Game, released in March 1994.