These Lab-Line large capacity refrigerators are ideal for storage of biological materials and other nonflammable substances. Six models available-from 23, 49, and 72 cu. ft. CFC-free insulation and coolant. Insulation is foamed-in-place. Adjustable thermostatic control from 1° to 10°C. Temperature uniformity of ±0.5°C at 4°C. Available in glass or solid door styles. Key locks on all doors. 0.040 polished aluminum exterior. 22-gauge stainless steel floor. PVC coated adjustable shelves. Compressor bottom-mounted for easy access. Additional accessories available include digital temperature readout or a digital temperature display and alarm. UL listed. Specifications: R4052-1/-2: Refrig. Section (W"xH"xD"): 23.75 x 61.5 x 26, Temp. Range/Refrig.: 1 to 10° C, Compressor: 1/3 hp, Shelves: 3, Shipping Weight: 277 Lbs. R4052-4/-5: Refrig. Section (W"xH"xD"): 50.5 x 61.5 x 26, Temp. Range/Refrig.: 1 to 10° C, Compressor: 1/2 hp, Shelves: 6, Shipping Weight: 480 Lbs. R4052-7/-8: Refrig. Section (W"xH"xD"): 74.75 x 61.5 x 26, Temp. Range/Refrig.: 1 to 10° C, Compressor: 1/2 hp, Shelves: 9, Shipping Weight: 655 Lbs.