The CO2 jet is a cryogenic effect system capable of making plumes of cryo fog up to 20 feet high. Incorporating Sigma's own cryo valve #CHP-V, the effect is very reliable and repeatable. A Standard plum nozzle is included with each system and a variety of optional nozzles are available. Stainless steel and brass construction yield a very rugged device. The CO2 jet system can be used with high pressure liquid CO2 tanks or refrigerated liquid dewar tanks to add to its versatility.