Mota Performance A70265 Polished Stainless Steel Radiator Overflow Tank - 2" Diameter x 15" Long with 22 Oz Capacity Beautifully polished Stainless Steel Polished billet screw on cap with o ring Includes mounting brackets and hardware Beautifully polished Stainless Steel Polished billet screw on cap with o ring Includes mounting brackets and hardware Slim design fits tight areas Helps dissipate heat better then a plastic tank