The easy-tow Liberty II has all of the features of the Liberty I but is a tandem axle unit. The Liberty II can bear more weight, thus leading to an array of available options. It also comes with four ASME cylinders instea......The easy-tow Liberty II has all of the features of the Liberty I but is a tandem axle unit. The Liberty II can bear more weight, thus leading to an array of available options. It also comes with four ASME cylinders instead two and is capable of being towed by any vehicle rated for 7000 lbs. or more. 6000 PSI Surge Brakes Low Pressure Reel High Pressure Reel SCBA Storage Reel CSA Approved