Air tanks store the reserve pressurized air your compressor produces, acting as the reservoir that powers quick, consistent height adjustments whenever a valve is opened. Air Ride Direct stocks air tanks in a range of sizes and shapes, including compact under-bed and behind-seat designs for trucks with limited space, rated for pressures up to roughly 200 psi for typical automotive air suspension use. Tank capacity should be matched to your compressor output and the total air bag volume in your system: too small a tank means slow refills and inconsistent height changes, while a properly sized tank keeps air on demand for smooth, repeatable adjustments. Port size, port location, and mounting orientation all vary by model, so check the specifications on each tank’s product page before you buy.