Dee Zee by GPI tank accessories. 2 Totals (1 Accumulative, 1 Batch), flow range 3 to 30 GPM; reads in gallons; 1 in. female NPT thread. Look for the Red Label. Pumps, meters, and accessories. You can now order GPI's entire catalog through Dee Zee. Everything to make your transfer tank to a perfect fit for you. Visit www.gpi.net for more information.