Features 1、Made of high quality stainless steel, sturdy and durable for long term use. 2、With good resistance to corrosion and oxidation. 3、Good sealing capability prevents the fluid from leaking. 4、3/4inch standardized thread, suitable for most pipeline system. 5、Mainly used in the pipelines of petroleum, chemical, pharmacy, fertilizer, electricity. Specification Features: 1. Made of high quality stainless steel, sturdy and durable for long term use. 2. With good resistance to corrosion and oxidation. 3. Good sealing capability prevents the fluid from leaking. 4. 3/4inch standardized thread, suitable for most pipeline system. 5. Mainly used in the pipelines of petroleum, chemical, pharmacy, fertilizer, electricity. Specification: Material : Stainless Steel Thread: DN20 3/4" Flow Direction: Two Way Color: Silver Size: 6 x 4cm / 2.4 x 1.6in Weight: Approx. 244g/8.6oz Package list: 1 * Check Valve Note: Please allow slight error due to manual measurement. Thanks for your understanding. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List