supply of 750mm (30) 230 volt ac,single phase,sweep:750mm,air delivery:400 cmm,250 watt,1440 rpmair circulator wall mounting heavy duty oscillation type propeller fan with 3 blades bracket type. minimumwarranty of 1 year should be provided.make:almonard or crompton greaves or alpha or bajaj or havells orusha[to be procured through gem sources ] .