Descriptions:The overflow box effectively transport aquarium water to under cabinet sumps, refugiums, or wet/dry filters. These high quality overflow boxes features bulkhead fittings for secure and convenient installation. The U-tube style compact overflow boxes are designed to fit between your tank and your wall to maximize space usage in your aquarium setup. With only 3 in. required between your tank and your wall, these boxes are excellent for optimizing space. Each box includes everything required to attach it to your system.Features: U-tube Cylinder Foams Nylon screw and wing nuts Pre-filter Box PF-Nano has 3/4" bulkhead PF-300 - PF-1200 has 1" bulkheads and PF-1800 has 1.5”Specifications Item # Model Dimensions Tank usage 10100 PF-Nano 4"x2.5"x8" 10-20g Nano 11000 PF-300 6"x3"x10" 30-75g Single 11005 PF-800 8"x3"x10" 75-125g Single 11010 PF-1000 9"x3"x10" 125-150g Dual 11015 PF-1200 10"x3"x10" 150-200g Dual 11020 PF-1800 12"x4"x10" 200-300g Dual
