Active Aqua 400-GPH Submersible Pond Pump in the Pond Pumps department at Lowes.com
Amazon.com: Uniclife Aquarium 400 GPH Submersible and Inline Water Pump 30W 6ft High Lift AC 120 V Quiet Adjustable Return Pump with 6 ft. Power Cord for Fish Tanks Pond Waterfalls Fountains
Amazon.com: Hydrofarm AAPW400 24-Watt 400 GPH Indoor/Outdoor Hydroponic Aquarium Pond 6ft Power Cord for 40 Gallon Reservoirs Submersible Water Pump, 400-GPH, Dark Grey/Black : Everything Else