MY MIRONEY 3-Way Aquarium Air Check Flow Control Swtich Gang Valve for Fish Tank

Features: Specially designed non-return valves will protect you air pump by preventing aquarium water from back siphoning during a power outage. Specification: Weight: 46g Color: Clear, Black Material: Acrylic, Plastic Outlet Diameter: 4mm/0.16" Total Size: 63 x 58 x 105mm/2.48" x 2.28" x 4.13"(L*W*H) Package Includes: 1 x Aquarium Air Check Valve Note: Due to the manual measurement,there may be small deviations. The color may have different as the difference display,please understand.