Size: 3-1/4" Dia. 9-1/4" high Tank: 5" tall, 16 oz. Ports Side: 3/8" N.P.T. Bottom: 3/8" N.P.T. #23-032 This Breather Catch 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.