uxcell Check Valve One-Way Inline Hose Connector for Water Tank Pump EPDM Plastic 9.4 mm Diameter Translucent 4 Pcs ○ The check valve prevents water from returning to the pump or tank, keeping it in the line. Widely used for water and oil pumps and tanks. Suitable for home, garden, and industrial applications. ○ Inner diameter of the tube: 5.8 mm; Minimum outer diameter of the tube: 8 mm; Maximum outer diameter of the tube: 9.4 mm; Overall size: 18.8x45.7 mm (D * H) ○ Made of EPDM plastic material with excellent waterproof performance. Can be installed quickly. Both ends connect directly to the hose. ˗ˏˋ See the product list here ˎˊ˗ ☘️ Immediate purchase OK! ☘️ Opened for product confirmation, so listed as "Like New" ☘️ The cheapest shipping method will be used (՞ .ˬ.՞)"‬ ○ 54-22 92030