This tank is both good looking and heavy duty. Prevents fluid mist from spraying on the race surface or back of your car (and tires). Pressurized fluid is captured in the expansion tank and will drain back into the transmission as the trans cools. Excess fluid may also be drained between rounds, by using included ball valve. Meets NHRA Transmission Overflow Rule requirements of 1-1/2 Pints. Includes breather and billet aluminum mounting bracket. Designed with an integral baffle. Dimensions: 2.750'' O.D. , 2.715'' I.D., 7.050'' long.