Chattanooga Fluidotherapy Units are spectacular devices used to treat a variety of afflictions. Cellex dry heat medium is the original medium processed to run efficiently in all Fluidotherapy devices. It comes in 10 pound containers. Single Extremity Unit (FLU110D) holds 30 lbs, Double Extremity Unit (FLU115D) holds 40 lbs, and Large Single Extremity Unit (FLU210DE) holds 60 lbs of Cellex media.