Valve size of 51MM, designed for optimal performance in various applications. Optional modes include Open (vacuum valve) and Off (vacuum valve)/Electronic valve, providing flexibility for different operational needs. Durable construction ensures long-lasting use and reliability in demanding environments. Easy installation process allows for quick setup and integration into existing systems. Versatile compatibility with various systems, making it suitable for a wide range of uses. This product features a 51MM valve size, ideal for applications requiring precise control. With optional modes such as Open and Off, it caters to diverse operational requirements. The durable design guarantees longevity, while the straightforward installation process simplifies integration. Its versatility ensures compatibility with multiple systems, making it a valuable addition to your setup. Color: As Shown Material: Stainless Steel Package Contents: 1* Electronic Valve 1* connecting wire 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.