The Kleinn Model 6355RT is a heavy-duty, 3.3-gallon steel replacement air tank engineered as a direct-fit replacement for Kleinn RAMHD, RAM19, and TRX21 vehicle-specific kits or for use in universal high-pressure custom configurations. Built for extreme durability, this premium tank features a unique offset leg design specifically configured to perfectly accommodate the RAMHD vehicle mounting bracket, and it comes equipped with five 1/4" NPT ports alongside one high-flow 1/2" NPT port to allow for versatile plumbing, clean accessory routing, and a reliable moisture drain point regardless of your final setup.