Haier | Water-Cooled ULT FreezerHaier Water Cooled ULT Freezer Advanced Temperature Control, Sample Management, and Multiple Safety Features The Haier Water Cooled ULT Freezer from Alto Med Supply is a highly efficient and reliable solution for environments with high ambient temperatures and limited air conditioning options. Designed to reduce energy consumption, this water cooled freezer minimizes heat emissions by up to 90%, making it both environmentally friendly and cost