So-Low Ultra Low Freezers are produced with high quality craftsmanship, heavy-duty materials, and over 50 years of experience. These freezers use a cascade refrigeration system, providing reliable and durable environmental conditions for your product’s vital temperature requirements. Units have a 16-gauge cold rolled steel exterior and interior is 14-gauge galvanized, non-corrosive steel. Galvanized steel conducts temperature more efficiently than stainless steel. This creates less stress on the compressors making them run cooler and longer.

Dual display digital temperature control shows actual chamber temperature on red LED display and the setpoint temperature on a green LED display. This gives assurance that the freezer is operating at the correct temperature range. Laboratory professionals world-wide have recognized the dependability and efficiency of So-Low Ultra Low Freezers, the first to combine all of these performance features and deliver a level of quality construction, reliability and value unequaled anywhere in the world.

Available in a wide variety of sizes and styles to accommodate your individual needs.

Temperature Control: Digital control with two temperature displays showing actual and setpoint temperatures
Alarm System: Battery operated alarm system emits audible and visual signals when there is a mechanical or electrical failure. The alarm has over/under temperature setting, alarm silencing switch and battery test switch
Door Gasket: Frost and ice build-up along door gasket is minimized by a heater harness located beneath the channel cap away from the inner chamber
Performance Tested: Each freezer is tested under the most demanding conditions for seven days in the factory before being released by quality control
Remote Alarm Relay: A relay for a remote alarm hook-up is provided
Refrigeration System: So-Low cascade type. Two hermetic compressors. CFC & HCFC free refrigerants
Construction: Chamber is 14-ga. zinc coated galvanized steel. Exterior is 16-ga. steel, powder-coated cool gray finish. Super heavy-duty door hardware. Compartments have insulated doors. 1/2″ port on the left side of unit. Heavy-duty locking casters. Made in the USA.

Certifications: cETL electrical approval

Warranty: EXCLUSIVE! Five year parts & labour warranty by IDEAL Scientific

Item No. IS20672 IS20673 IS20674 IS20675 IS20676
Capacity 13 cubic ft (370 litres) 18 cubic ft (505 litres) 22 cubic ft (626 litres) 25 cubic ft (710 litres) 30 cubic ft (843 litres)
Temperature Range -40°C to -85°C -40°C to -85°C -40°C to -85°C -40°C to -85°C -40°C to -80°C
Interior Dimensions (WxDxH) 50.8 x 55.9 x 130 cm (20 x 22 x 51.25”) 58.4 x 66.1 x 130 cm (23 x 26 x 51.25”) 72.4 x 66 x 130 cm (28.5 x 26 x 51.25”) 86.4 x 63.5 x 130 cm (34 x 25 x 51.25”) 106.7 x 63.5 x 130 cm (42 x 25 x 51.25”)
Exterior Dimensions (WxDxH) 91.4 x 85 x 201.9 cm (36 x 33.5 x 79.5”) 93.9 x 92 x 201.9 cm (37 x 36.25 x 79.5”) 106.7 x 92 x 201.9 cm (42 x 36.25 x 79.5”) 127 x 92 x 201.9 cm (50 x 36.25 x 79.5”) 151.1 x 92 x 201.9 cm (59.5 x 36.25 x 79.5”)
Interior Compartments 5 5 5 5 3
Electrical Requirements Voltages Available:

115 volts, 60 Hertz, 1 phase
208 volts, 60 Hertz, 1 phase
230 volts, 60 Hertz, 1 phase
220 volts, 50 Hertz, 1 phase

Optional Accessories:

Chart Recorder – 6” (15.2cm), seven day recorder
CO² Backup System
LN² Backup System