Selling the above due to upgrade of skimmer... Condition 8/10 with NO crack or scratches.. The spec is as follows. Tank Size: 500 L Product Size (mm): 280x150x570 Foot Print (mm): 280x150 Pump Power: OTP-1000 18W, 1000lph Installation: Exterior See attachment for pic... Selling for $120. Pls contact me at 94884776 to deal. Cheers! Thomas