The P521-09 Tank Mounting Bracket Kit is an optional accessory for use with air tanks supplied with all Zero Series compressor systems. If you have the T0A, S-330, or D-330 system, you will NEED 2 MOUNTING BRACKET KITS as these systems use a larger air tank. It is used to mount the tank with the draincock at the bottom of the tank for easier draining of condensation water which may accumulate in the tank over time.
