Chattanooga Hydrocollator E-2 Stationary Heating UnitHydrocollator Stationary Heating Unit Model E 2 A great value for clinics that need more HotPac capacity than the E 1 hydrocollator provides. Like the E 1, the E 2 is designed for tabletop or cart use so it is mobile and easy to maneuver and use. The E 2 features over 60% more capacity than the E 1, and it is designed to accommodate the larger oversize and cervical HotPacs in addition to the standard HotPacs. Like all Hydrocollators, the E 2 is