Tetra
TetraPond Submersible Flat Box Filter, for 250 to 500 Gallon Ponds
EmmaWu
EmmaWu 480 GPH Submersible Aquarium Internal Filter Pump for (Up to 160 Gallon) Fish and Turtle Tank and Pond with Chemical, Physical, and Biological Filtration
[Functionality and Social Acceptance of Safe Water Technology: Pond Sand Filter (PSF) and Rainwater Harvesting System (RWHs) in the South-West Coastal Region of Bangladesh] [By: Ansari, Md. Sazzad] [August, 2011]
HIILU
Pond Filter 1400-16000L/h Submersible Water Pump for Aquarium Fish Tank Garden Fountain ECO Pond Filter System 24/60/80/140W Pond & Water Pump (80W 10000L/h)