This general purpose gravity feed spray gun uses high volume, low pressure (HVLP) for high output with lower over-spray. This style of spray gun is better for the environment and also helps you save money on material costs. The HVLP spray gun features include an adjustable fan pattern and volume control. Required air supply: 1-3 HP compressor. Required pressure: 20-50 PSI. Average air consumption: 6 CFM @ 40 PSI. Standard nozzle: 1.4mm (installed). Optional nozzles: 1.7mm & 2.0mm. Paint capacity: 20 oz. Air Inlet: 1/4' - 18 NPS