The shell is made of premium plastic material,good toughness,sturdy and durable. Adopts quality electronic components and shaft,it has high efficiency and good performance. Safe to use with automatic overload and over temperature protection which also prolong its lifespan. The stainless steel connector is non-toxic,corrosion resistant and anti-rust,easy to install. This DC pump is used breweries and Mini-breweries. Condition: Voltage:DC 12V Input power:18W Current:1.5A Optional Type:without connector Water Head:5-6m Rate:9L-10L/min Working Temperature:100℃ Product Type:Carbonation Equipment Colour:Black Material:metal+plastic Package Contents: 1* Beer Pumps Only the above package content, other products are not included. Note: Light 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.