Fusho ring blower main products LT1 and LT2 Series, And the power range is from 0.2kw to 25kw(1/4HP to 33.5HP);The pressure up to 410 inH2O;The volume flow up to 1300cfm. We have more than 100 common sold models in total. Ring Blower parameters: Model:LT1 420 H36 Stage:Double Frequency(Hz) 50/60 Rated power(KW) 1.6/2.05 Output Voltage(V) 200-240/345-415Y 220-275/380-480Y Rated current(A) 7.5/4.3Y 7.6-4.4Y Max Air Flow (m3h) 150/180 Rated Suction (mbar) -390/-320 Rated Discharge (mbar): 400/310 Sound dB(A) 66/69 N.W(Kg) 24 The other main feature are: Easy installation Low noise level Minimal maintenance Higher Pressure Ratios Cooler Running Bearings Longer Grease Life Simple Maintenance 100% Oil Free Air 24 hours' running /day. Small dimension