Features: Fish Tank Flow Valve,3-way Aquarium Water Flows Control Valve,Aquarium Hoses Valve,External Filter For Aquarium,Aquarium External Filter Accessories,Connect the hoses of the external filter bucket for easyly water change, external filter bucket, 3-way valve,Upgrades Your Water Filtrations System with External Filter Bucket 3-Way Valve Water Change for Cleans and Clear Aquarium Water! Made from PVC Material, This Water Change is Durable, Resistant to Corrosion and Easy to Install. fit for Aquarium Enthusiasts and Who Want to Keep Their Fish and Reptiles Healthyly and Happy. Use It for Regular Water Changes, Cleaning the Gravel and Other Aquarium Maintenance Tasks Without Disrupting Habitat of Your Pets. Save Timely and Effort . Specifications: Material: PVC Color: black12mm/black 16mm Size: Approx.12mm/0.47in,16mm/0.63in Package Includes: 1xAquarium Water Flows Control Valve note: Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. Due to difference between different monitors, the picture may not reflect the actual color of the item.