The HK Army HSTL 68/4500 Aerolite Carbon Fiber Paintball Tank has been developed with performance and affordability in mind. The comprehensive system pairs a lightweight carbon fiber bottle and a reliable aluminum regulator with an industry-standard output pressure of 800 psi. DOT Approved. HK Army's HSTL AIR Lightweight carbon fiber 68/4500 HPA paintball tank is built for paintball and perfect for your paintball marker. UPGRADE NOW! Choose Compressed Air For Enhanced Accuracy, More Consistent Velocity, and Higher Performance In All Weather Conditions Over CO2! HK Army Carbon Fiber 68/4500 Paintball Tank Air System Features: * 68 Cubic Inch Lite-Weight Bottle w/ 4500 psi Capacity * Reliable Aircraft Grade Aluminum Regulator * Weight 2lbs 9oz * 800 psi Output Pressure * DOT Approved Cylinder * 1.8K and 7.5K Burst Disks for Safety * Five-Year Hydro Cycle - Date Stamped on Tank is the Date the Tank was Manufactured, NOT an Expiration Date * Limited 90-Day Manufacturer's Warranty * Made in USA HPA Paintball Tank Ships Empty - Must Be Filled Prior to Use.