This Coolant Expansion Fill Tank is 1.25 Quart. Size: 5-1/2 in. Tall, 4-1/2 in. Wide, 3 in. Deep. Side Port: 3/8 in. N.P.T. Bottom Port: 1/2 in. N.P.T. This Canton expansion tank is TIG welded with .100 in. thick aluminum and has a billet aluminum neck with a barbed overflow fitting and accepts standard radiator caps. Has built in mounting bracket.;.