Breather Tank is plain aluminum and comes with a petcock, a standard 1-3/8" breather, a stainless steel mounting clamp for panel mounting and a weld-on bracket which allows for roll bar mounting. Dimensions: 3-1/4" Dia.11-1/4" high. Tank: 7" tall, 24 oz. Ports Side: 3/8" N.P.T. Bottom: 3/8" N.P.T.