Diameter: 42 mm. According to the importance of this product in the later application, emphasis is placed in the production particular attention to the smallest and finest details. Also this product is characterized by the typical RIZOMA styling and harmonious shape. Available in different anodized colors. AllRizomaCT surge tank are equipped with EPDM seals (black finish) and DOT 3, DOT 4 DOT 5.1 and oil usable. Technical specifications: Volume: 31cm ᵌ. height: 55 mm. Diameter: 51.5 mm. Adapter included: HOSE CONNECTION Ø 8mm.