The General Industries STI AQUASWEEP™ oil water separator comes with two different effluent options, 10ppm and 5ppm. The STI AQUASWEEP™ is available in many sizes to accommodate various flow rates. Oil droplets 20 microns and larger are removed. Flow rates of up to 10,000 gallons per minute are available. All AQUASWEEP™ oil water separators are interior coated with two coats of epoxy, and come complete with electronic monitoring of the oil level so you know when it is time to remove the collected oil. This is a Steel Tank Institute licensed product.