The BriskHeat HotBelt Wrap-Around Refrigerant Jug Warmer is the ideal solution for pre-heating and keeping refrigerant jugs warm when servicing HVACR systems in cold environments. PreHeat and warm refrigerant jugs to speed up chargingEnsure adequate cylinder pressure for servicing AC or refrigeration systemsIdeal for portable field service useBuilt-in preset thermostat for easy plug-and-play useExceptional flexibility, durability, and heat uniformityRapid heat-up and thermal responseAdjustable fit design with hook & loop strap: fits most 30lb, 50lb, and 125lb jugsSafe for R-410A, R-407C, R134a, R-22, and moreMoisture and chemical resistantGrounded for safety