Plastic Quick Plug Check Valve Non Return Water Accessory for Aquarium Tubes

Two‑way quick insertion, no leakage, the tube is connected to the tube, and the tube is connected to the diffuser. Built‑in check valve, with anti‑backflow function. 6mmCelsius0.2in outer Diameter acrylic tube, stainless steel tube, trachea can be used. Condition: 100% brand new Item type: Check Valve Material: plastic Color: As picture shown Length: Approx. 5cmCelsius2in Diameter: Approx. 1.4cmCelsius0.6in Weight: Approx. 10g  Product use: anti-return water check valve