Large Aquarium Protein Skimmer kit up to 300 gallons with no pump including Keep your aquarium crystal clear! Extra large skimmer for aquariums up to 300 gallons. Only skimmer body and all plumbing, NO PUMP including. You must buy your own powerhead and pumps to use skimmer. Best available deal online! Perfect for your aquarium project! All aquarium skimmers sold with no return policy.