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At AquaCave, we offer some of the best selection & best prices on submersible water pumps for you marine, reef, and freshwater aquarium.
Submersible Aquarium Water Pumps / Return Pumps are operating while being completely submersed inside aquarium or sump filter. Rather than sucking water through an inlet tube like an external pump, most submersible pumps do not have an inlet in which you can attach tubing or hose. They are used primarily to feed protein skimmers and reactors and to provide water movement within the tank. Submersible water pumps are usually placed directly in the sump's return compartment. These pumps are easy to install and service. Submersible water pumps are recommended for aquariums up to 180 gal. These pumps tend to be quieter than external pumps but can also transfer more direct heat to aquarium water. For most applications, internal (submersible) water pumps provide a good mix of performance and ease of operation.

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  • Ecotech Marine Intake Kit for Vectra S2 Pump Ecotech Marine Intake Kit for Vectra S2 Pump

    EcoTech Marine

    Ecotech Marine Intake Kit for Vectra S2 Pump

    Ecotech Marine Intake Kit for Vectra S2 Pump Intake Barb Size: 1" Output Barb Size: 3/4"  What's Included? 1x Intake Barb Fitting 1x Output Barb Fitting 1x Intake Screen  Product code: 8539Item No. WP-ET-ETM4151

    $19.99
  • HX2500 Water Pump, 172 gph HX2500 Water Pump, 172 gph HX2500 Water Pump, 172 gph HX2500 Water Pump, 172 gph HX2500 Water Pump, 172 gph

    Hailea

    HX2500 Water Pump, 172 gph

    HX2500 Water Pump A great value, these powerful submersible water pumps are ideal for a wide variety of applications, including hatcheries, aquariums, hydroponics, and water gardens. Magnetically driven, they are fresh and saltwater compatible and...

    $19.95
  • EcoPlus 100 Submersible Water Pump, 100 GPH, 5W EcoPlus 100 Submersible Water Pump, 100 GPH, 5W EcoPlus 100 Submersible Water Pump, 100 GPH, 5W

    EcoPlus

    EcoPlus 100 Submersible Water Pump, 100 GPH, 5W

    EcoPlus 100 Submersible Water Pump, 100 GPH, 5W. Powerful oil free high magnetic rotor. Ceramic shaft and bearing insures reliability and quiet operation. Trouble free one moving part. Strainer protects impeller from damage. Salt water compatible...

    $18.95
  • HX2000 Water Pump, 172 gph HX2000 Water Pump, 172 gph HX2000 Water Pump, 172 gph HX2000 Water Pump, 172 gph HX2000 Water Pump, 172 gph

    Hailea

    HX2000 Water Pump, 172 gph

    HX2000 Water Pump A great value, these powerful submersible water pumps are ideal for a wide variety of applications, including hatcheries, aquariums, hydroponics, and water gardens. Magnetically driven, they are fresh and saltwater compatible and...

    $18.95
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