The SATAjet X 5500 Spray Gun gives painters the choice between two distinct spray fan shapes "I" and "O" in both HVLP (high volume low pressure) and RP (reduced pressure) application technologies. The "O" nozzles have an oval-shaped spray fan pattern with a larger dry zone and a wet core to accommodate increased application speed. The “I” nozzles have a parallel spray fan pattern with a minimal dry zone and a dryer center, which is ideal for painters preferring a reduced application speed.