Marine sourcesSWT-300 Marine-Box Supplementary Sump / Fish Keeping  Use as Supplementary sump: Immediately enlarge your sump 2 Use as Newly-added fish keeping tank 3 Made ot complete cast acrylic 4 Different size water inlet 5 Perfect acrylic lid. and transparent front acrylic viewer 6 Round edgeless and safe acrylic edge 7 lighter and high -class acrylic material than glass material 8 has the space to let the power cord escape Complete acrylic material Available in the following sizes SWT-150 150 / 420 / 550 MM 32 L SWT-200 200 / 420 / 550 MM 42 L SWT-250 250 / 420 / 550 MM 53 L SWT-300 300 / 420 / 550 MM 63 L SWT-350 350 / 420 / 550 MM 74 L SWT-400 400 / 420 / 550 MM 84 L