Hello, I have for sale about 1200 aquarium protein skimmers. I not the sure exact amount but if you are interesting we can count. It is about 1200 (+/- 200 units).  These come from bankruptcy auction. Skimmers new but were stored in the warehouse for a long time. It is 2 different models and versions:110 and 300 gallons, all European and UK 220V power versions. 300GAL version needs new impellers. Original retail price of these was about $100 and $200 each for 110gal and 300gal models. Retail price over $150000. YOU CAN EASY REPLACE THESE PUMPS WITH USA 110v PUMPS OR EVEN SELL WITH NO PUMP AT ALL. All boxes have a different condition. I want to get about $3.5 per unit but will sell all at once, no separation. Actually much less than $3.5 per unit. I also include many parts for free (about 2000 extra European and UK  pumps and other accessories and parts). Please do not bid or buy before contacting me. If you interesting send a question and I will provide more details. Warehouse located in Louisville KY. You will be responsible for pick up and transportation but I will help and assist if you need. CONTACT FIRST.