The Skimz Monzter series of overflow boxes are used in transporting water from the main aquarium to under cabinet sumps, refugiums or wet/dry filters. Skimz overflow boxes are ideal for those standard tanks in need of additional sump filtration system, without the need for complicated drilling or aquarium modifications. The OM2500 is ideal for aquariums up to 500 litres. L 185 x W 183 x H 250mm. The item "Skimz Overflow Box Om2500 Marine Reef Aquarium Tank" is in sale since Tuesday, September 25, 2018.This item is in the category "Pet Supplies\Fish & Aquarium\Filters". The seller is "minster-pet-products" and is located in Axminster. This item can be shipped worldwide.