Charging tank rated for 4500 PSI and constructed with carbon fiber to reduce weight. Includes stainless steel fill connection, 12â?쳌 microbore hose, hand wheel for controlled filling, and built-in pressure gauge with bleed valve. Weighs less than five pounds and measures 15â?쳌 long and 4â?쳌 diameter. Capacity: 90 cu. in.