This traditional rack system is for exclusive use with HydraTherm and HydraTherm Deluxe units. Made of the same material composite as the tank, the rack functions like a traditional stainless-steel rack and allows stacking of the hot packs. Please note, this is the rack system only. HydraTherm and HydraTherm Deluxe units available separately. Allows for maximum hot pack storage as the rack sits lower in the tank, letting additional packs be stacked on top. Because of the heat of the water, users must use tongs for hot pack removal. Included shelf clips allow the rack system to be connected to any of four available positions. Made of high-grade polymer, the rack is temperature resistant no matter how hot the water gets. HydraTherm products are made in the USA.