Be confident in your purchase we're an Authorized Coral RX Dealer. How cool is that?!?!? Specs: Volume: Three 2.0 liter compartments Dimensions: 11.8 in. x 4.8 in. x 8.3 in. 300 mm x 121 mm x 211 mm Features: Keeps Dosing Chemicals Clean: Our tight-fitting lid is designed to stay in place without creating a vacuum. High Capacity: Each individual high capacity compartment holds two liters (2L). Strong Hose Ports: Hose connections are made from PVC to reduce breakage and to ensure tubing stays in place. Imperial and Metric Ready: Easy to read graduations in both ounces and milliliters. The Simplicity 6L 3 x 2L Dosing Container contains three high-capacity compartments will help you organize solutions and keep your sump area tidy. The 2-liter modular design allows you connect multiple units together to suit your unique dosing needs. The clear acrylic is marked with measurements in both milliliters and ounces, making it easy to check your remaining solution.