Double wall construction. Inner chamber made richly anodized aluminum or highly polished stainless steel sheet. Supplied with two/three removable perforated shelves. Exterior made out of thick mild steel sheet duly finished in write stoving enamel/powder coated paint with mat finished colour combination. Outer double wall door is provided with magnetic gasket and lock & key arrangement. Inner door unbreakable acrylic transparent sheet for inspection of material in the chamber without disturbing the chamber temperature. Optional: i) Timer 0-24 hours day night cycle. ii) Co2 /air mixer nozzle is provided. iii) Internal illumination with 3 fluorescent tubes. iv) Microprocessor PID digital temp. Indicator-cum-controller. v) Automatic Voltage stabilizer 3-5 KVA (recommended-must). S.No | Inner Chamber size in mm WxDxH | Capacity in Cu.ft | Capacity | a | 405x405x405 (Bench Top Model) | 2.4 cu.ft. | 65 ltrs. | b | 455x410x610 | 4 cu.ft. | 112 ltrs. | c | 505x415x830 | 6.1 cu.ft. | 171 ltrs. | d | 565x565x865 | 10 cu.ft. | 280 ltrs. | e | 650x580x900 | 12 cu.ft. | 336 ltrs. | f | 700x650x900 | 15 cu.ft. | 420 ltrs. | |