The Kleinn Model 6351RT is a premium 3-gallon replacement air tank engineered with an ultra-slim, compact profile that delivers dependable, high-capacity pneumatic storage for tight-space installations where chassis real estate is at an absolute premium. Constructed from heavy-duty steel with a rugged black epoxy exterior finish, this vehicle-grade tank is internally coated with Cortec anti-corrosion protection to safeguard against internal rust and moisture contamination for maximum system longevity. Featuring a precise multi-port configuration for clean plumbing connections to your compressor, pressure switch, and main air lines, it is designed as a direct fitment for specialized Kleinn systems, seamlessly integrating with the VELO, SDKIT17, FSD23 vehicle-specific systems, as well as the ProBlaster HK9-Slimline train horn kit, and comes complete with all necessary mounting hardware for a secure setup.