External Main System Pumps for Aquariums: Up to 1000 gph

Product Code: RHY19920
The Hydor Seltz D DC 1000 GPH Controllable Universal Pump is a high-performance, multipurpose, electronic, centrifugal pump with controllable flow thanks to electronic inverter technology. Ideal for sumps, refugiums, biological filters and in general, to circulate fresh and salt water.

Product Code: RHY19914
The Hydor Seltz D DC 500 GPH Controllable Universal Pump is a high-performance, multipurpose, electronic, centrifugal pump with controllable flow thanks to electronic inverter technology. Ideal for sumps, refugiums, biological filters and in general, to circulate fresh and salt water.

Product Code: RIW00150
The Iwaki MD-15RLT Pumps are recommended for high-head situations or when using cartridge (pressure) filters. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 300 gph. Max head: 11.1 feet.

Product Code: RIW00200
The Iwaki MD-20RLT Pumps are recommended for high-head situations or when using cartridge (pressure) filters. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 420 gph. Max head: 14.1 feet.

Product Code: RIW00201
The Iwaki MD-20RLXT Pumps are best suited for circulation only situations where water encounters very little back pressure. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 540 gph. Max head: 8.2 feet.

Product Code: RIW00300
The Iwaki MD-30RLT Pumps are recommended for high-head situations or when using cartridge (pressure) filters. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 500 gph. Max head: 17.7 feet.

Product Code: RIW00301
The Iwaki MD-30RLXT Pumps are best suited for circulation only situations where water encounters very little back pressure. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 960 gph. Max head: 13.5 feet.

Product Code: RIW00400
The Iwaki MD-40RLT Pumps are recommended for high-head situations or when using cartridge (pressure) filters. The MD pumps have Japanese motors. Iwaki MD series pumps do not come with a plug at the end of the power cord. Flow rate: 750 gph. Max head: 21.3 feet.

Product Code: RIW10200
The Iwaki WMD-20RLT Pumps are recommended for high-head situations or when using cartridge (pressure) filters.The WMD pumps have American motors. Flow rate: 420 gph. Max head: 14.1 feet.

Product Code: RIW10201
The Iwaki WMD-20RLXT Pumps are recommended for circulation only situations where water encounters very little back pressure. The WMD pumps have American motors. Flow rate: 822 gph. Max head: 8.2 feet.

Product Code: RIW10300
The Iwaki WMD-30RLT Pumps handle back pressure better than RLXT pumps and can be used for almost any application. They are recommended for high-head situations or when using cartridge (pressure) filters. The WMD pumps have American motors. Flow rate: 510 gph. Max head: 17.7 feet.

Product Code: RIW10301
The Iwaki WMD-30RLXT Pumps are recommended for circulation only situations where water encounters very little back pressure.The WMD pumps have American motors. Flow rate: 960 gph. Max head: 13.5 feet.

Product Code: RIW10400
The Iwaki WMD-40RLT Pumps handle back pressure better than RLXT pumps and can be used for almost any application. They are recommended for high-head situations or when using cartridge (pressure) filters. The WMD pumps have American motors. Flow rate: 750 gph. Max head: 21.3 feet.

Product Code: RLG80506
The Little Giant 2-MDQ-SC Aquarium Pump is a pressure pump for use in pressure situations ( in-line pressure canister filters, protein skimmers). Flow rate: 510 gph.

Product Code: RLG80507
The Little Giant 2-MDQX-SC Aquarium Pump is a Circulation pump meant for use in free flowing set-ups (direct tank return applications, wet/dry filters). Flow rate: 770 gph.

Product Code: RLG81506
The Little Giant 3-MDQ-SC Aquarium Pump is a pressure pump for use in pressure situations (in-line pressure canister filters, protein skimmers). Flow rate: 700 gph.

Product Code: RLG82506
The Little Giant 4-MDQ-SC Aquarium Pump is a pressure pump for use in pressure situations (in-line pressure canister filters, protein skimmers). Flow rate: 850 gph.

Product Code: RCV25002
The Reef Octopus Aquatrance 1200 Water Pump is an efficient water pump that provides exceptional performance at an economical price. It's great as a return pump or feed pump for a media reactor. Max water flow: 340 gph.

Product Code: RCV25000
The Reef Octopus Aquatrance 800 Water Pump is an efficient water pump that provides exceptional performance at an economical price. It's great as a return pump or feed pump for a media reactor. Max water flow: 240 gph.

Product Code: RCV25218
The Reef Octopus OCTO VarioS-2 Controllable DC Circulation Pump features a detachable controller module, high quality ceramic shaft and propeller bearing to reduce wear and tear, and the latest variable speed flow technology for refined control, enhanced performance, energy-efficiency and safer operations. For submersible or external applications. Max flow: 792 gph.

Product Code: RRO34500
The Rossmont Riser R550 Return Pump can be used with the Rossmont Waver Wireless 2-Channel Controller. With the Waver the Riser flow can be increased and decreased, and up to 2 Risers can be controlled with the Waver for a wave effect.

Product Code: RRO34501
The Rossmont Riser R700 Return Pump can be used with the Rossmont Waver Wireless 2-Channel Controller. With the Waver the Riser flow can be increased and decreased, and up to 2 Risers can be controlled with the Waver for a wave effect.

Product Code: RSC06700
The Seachem Impulse 400 Multi-Function Pump is a quiet, energy-efficient, multi-function pump. It is ideal for fresh and saltwater aquariums, protein skimmers, indoor fountains, water-cooling and all similar submersible and inline applications which require energy efficient, ultra quiet performance. 400 GPH.

Product Code: RSC06711
The Seachem Impulse 600 Multi-Function Pump is a quiet, energy-efficient, multi-function pump. It is ideal for fresh and saltwater aquariums, protein skimmers, indoor fountains, water-cooling and all similar submersible and inline applications which require energy efficient, ultra quiet performance. 600 GPH.

Product Code: RSC06722
The Seachem Impulse 800 Multi-Function Pump is a quiet, energy-efficient, multi-function pump. It is ideal for fresh and saltwater aquariums, protein skimmers, indoor fountains, water-cooling and all similar submersible and inline applications which require energy efficient, ultra quiet performance. 800 GPH.