The 6900 features HVLP (high volume-low pressure) technology provides high material transfer efficiency, eliminates paint waste and requires lower air volume.
For an in-depth video, click here: Aircat HVLP Gravity Feed Spray Gun Video
The 6905 features stainless steel needles and precision air caps for reliability and perfect paint atomization.
For an in-depth video, click here: Aircat HVLP Gravity Feed Spray Gun Video