Excellent for a ready supply of moist heat packs! The E1 comes with four standard hot packs (10" x 12.5"). It fits on a desk or counter top. Perfect for small clinics and departments where Oversize HotPacs are not a concern. Hydrocollator Heating Units remain the benchmark against which all others are judged. Durable and easy to maintain, these high quality stainless steel units provide a constant supply of temperature consistent HotPacs. Supplied ready for immediate use and requiring no special plumbing, this unit features a low water cut-off and is easy to fill and drain.