DE-108 MUFFLE FURNACE RECTANGULAR ALTIS MAKE Specification- Light weight ceramic fibre wool insulation (instead of Brick insulation). The outer casting is made of double walled thick P.C.R.C. Sheet, duly painted Heating elements are made of KANTHAL "A-1" wire and backed by high temperature cerwool insulation, which avoids loss of energy. Temperature is controlled through Digital Temperature Indicator-cum-Controller. To work on 220/230 volts or 440/440 volts A.C. Maximum Temp. 1200 degree C and working Temp. 1150 degree C. MUFFLE SIZE- 200 x 100 x 100 mm, RATING- 1.0 KW MUFFLE SIZE- 250 x 125 x 125 mm RATING- 2.0 KW MUFFLE SIZE- 300 x 125 x 125 mm, RATING-2.5 KW MUFFLE SIZE- 300 x 150 x 150 mm, RATING-3.5 KW MUFFLE SIZE- 300 x 200 x 200 mm, RATING-4.0 KW MUFFLE SIZE- 350 x 175 x 125 mm, RATING-4.0 KW MUFFLE SIZE- 375 x 175 x 175 mm, RATING-4.5 KW MUFFLE SIZE- 475 x 175 x 175 mm, RATING- 5.0 KW