Review on Powerful And Quiet Submersible Pump For Aquarium, Pond, And Hydroponics: KEDSUM 660GPH Pump With 6Ft High Lift And 3 Nozzles by Terry Napoleon

Pump is as described. It's an excellent price and feels high quality. BUT, in case the seller hasn't updated the description of this yet, the flow rate is NOT adjustable. It has one flow rate and that's "ON". So if you're hoping to be able to dial it down for lighter uses, keep in mind that you will have to install a valve in the outlet that will allow you to slow the flow rate. I had to do some research but it turns out with this style pump there is no risk of damage to the pump by restricting the flow coming OUT of the pump. All it does is lower the demand on the pump and the motor doesn't have to work as hard. Great pump, though!