Review on 🐠 GROWNEER 2 Packs 550GPH Submersible Pump: Ultra Quiet, High Lift, Ideal for Aquarium, Fish Tank, Pond, Hydroponics & More by Kristen Pack

Mixed review, they pump well but they say they are adjustable but none of them actually change as the drive changes into the closed position rotates. Still full of pressure. Maybe mine is just broken. So I uselessly tore off the pressure and flow scale. Pros: Silence has decent pressure for circulation systems. Cons actually not adjustable, can't use adjustable pressure sprayers, rubber feet, can't adjust arthritis pain.