Review on 🌊 KEDSUM 400GPH Submersible Water Pump - Ultra Quiet Fountain Pump, 1500L/H, 40W, 7ft High Lift, 6.6ft Power Cord, 3 Nozzles - Ideal for Fish Tank, Pond, Aquarium, Statuary, Hydroponics by Laura Evans

Nice water pump and it works for my needs (water changes in a large aquarium). But the claimed cost is a complete lie. I tested the pump and at maximum flow it only delivers about 90 gallons per hour. I wouldn't call it "super quiet" either. It's not loud, but a very noticeable rumble can be heard during operation. I have other better flow pumps that are a bit quieter. I decided to keep the pump because it works. But I recommend you look around for a better product from a more honest seller.