Superior efficiency Outstanding reliability Fewer moving parts Compliance feature offers unprecedented liquid handing capability Internal motor protection can efficiently protect motor from high temp and high current Very low noise / gas pulsation Five decibels quieter than piston compressor Simplified system design Unique unload system design Unique unload start feture requires no start capacitors/relay Crankcase heater or accumulator no start capacitors /relay Crankcase heater or accumulator not requied in most applications High heat pump capacity due to nearly 100% vulometric efficiency Selection scope ranges from 1.5HP to 15HP and is uprising.