Please note: There may be slight color difference or discrepancy in the actual product, which does not affect the use, please don't mind, thank you! Food Grade Materials Support High pressure - The working pressure of the hose is 5000psi. The aluminum construction has excellent performance in terms of resistance, Both the hose and o-rings are made of food-grade materials, ensuring safety and reliability. They not affect the taste of the carbonated water and provide excellent air tightness. Specification:C:W21.8-14(DIN477) Colour:As Shown Material:aluminium Package Contents: 1 x Soda Maker Adapter Hose Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.