Air Lift Performance offers various aluminum tank sizes and finishes so you're able to pick the best option for your application. Ranging from 2.5 gallons up to 5 gallons, these tanks provide plenty of volume to control up to 4 air springs. The raw aluminum finish has a nice textured-spun type look while the polished has a mirror-like finish. These tanks are backed by Air Lift Performance's 2-Year Limited Warranty. Please see the bullet points for product specific details including tank volume, finish, port configuration and dimensions.