<p>The specifications of each model are as follows:</p><p>Model 1: CGA320 connector 24-inch plastic pipe without meter</p><p>Model 2: W21.8 connector 24-inch plastic pipe without meter</p><p>Model 3: CGA320 connector 36-inch plastic pipe with 3000psi meter</p><p>Model 4: W21.8 connector 36-inch plastic pipe with 3000psi meter</p><p>Model 5: CGA320 connector 24-inch steel braided pipe without meter</p><p>Model 6: CGA320 connector 36-inch steel braided pipe without meter</p><p>Model 7: CGA320 connector 24-inch steel braided pipe with 3000psi meter</p><p>Model 8: CGA320 connector 36-inch steel braided pipe with 3000psi meter</p><p>Model 9: W21.8 joint 24-inch steel braided pipe without meter</p><p>Model 10: W21.8 connector 36-inch steel braided pipe without meter</p><p>Model 11: W21.8 connector 24-inch steel braided pipe with 3000psi meter</p><p>Model 12: W21.8 connector 36-inch steel braided pipe with 3000psi meter</p><p>Working principle: manual ball valve</p><p>Pressure resistance: 40</p><p>Product unit price: 82.10</p><p>Voltage: No electricity required</p><p>Material:brass</p><p>Black connector thread: TR21-4</p><p></p><p></p><p>Thread type 1 (outlet valve diameter 21mm)</p><p>Carbon dioxide tank CGA320 valve</p><p>Thread type 2 (outlet valve diameter 22mm)</p><p>DIN477/W21.8-14/JIS m22-14 CO2 tank valve</p>