This 2 gallon tank has four 1⁄4 in ports and two 1⁄2 in ports. There are 2 on the side, 1 on each end, 1 on top, and 1 on the bottom. Factory rated to twice its working pressure of 150 PSI these tanks are extremely durable. Made in the USA with the highest level of quality control. The tank measures 17 inches in length, is 6 inches in diameter and stands up 7 inches tall. The tank is finished with semi-gloss black powder coating.