This air tank boasts a 150 PSI working pressure and meets all SAE J10B specifications. With a 2850 cubic inch capacity (12.34 gallons) and all ports being NPT, it fits most makes and models. The tank's 12-inch diameter and 29.50-inch length make it practical for a variety of applications. The main port is 3/4", the drain port is 1/4", and the end port is 1/2". This air tank is sold individually and is a reliable choice for those in need of a durable and efficient air storage solution.