E5YK 1/2" to 6/8mm Aquarium Ball Valve Adapter - White + Red (5 PCS)
Brand N/A Model E5YK Quantity 5 piece(s) per pack Color White + red Material Plastic Specification Suitable for connecting Oxygen pumps or CO2 tubes from 1/2" to 6/8mm size. Good for control aquarium water flow rate. Other Features Durable use easy operation corrosion resistance sealing well. Packing List 5 x Ball valves