Max Flow 4,000gph | 13~45 watts | 25-150+ gallons Includes 4K Gyre Pump Only - Controller and power supply required Mounting applicable for glass or acrylic aquariums up to 5/8 in thick. IceCap 4K Gyre Flow Pump Only The IceCap Gyre is back and better than ever! The all-new IceCap 4K Gyre Flow Pump is more powerful than its 3K predecessor. Gyre 4K Pump Features & Benefits - Unique Gyre Flow: Virtually Eliminates Dead Spots - Evenly Distributed Linear Flow - Discrete Design - Can Be Mounted Vertically or Horizontally - Can Be Mounted Close to the Water Surface - Waterproof Magnet Mounts - Twin Directional Flow Cages - Includes 2 Sets of Propellers: Orange and Black - HYDROS WaveEngine Direct Drive Compatible - 1-Year Limited Warranty - The IceCap 4K Gyre uses officially licensed technology by Maxspect, creators of the original Gyre pump, to generate the now-iconic gyre water flow in your aquarium—but without breaking the bank! The IceCap 4K is also Direct Drive Compatible with the HYDROS WaveEngine multi-pump controller. Gyre 4K Technical Specs - Rating: Aquariums 25-150+ Gallons - Maximum Flow: 4,000 Gallons Per Hour - Minimum Flow: 1,286 Gallons Per Hour - Power Consumption: 13-45 Watts - Size: 12L x 3.15W x 1.7H - Weight:711g/25.1oz - Cable Length: 6ft - Tank Thickness: Up to 5/8” thick - Glass or Acrylic: Safe for Both