This Iwaki MD-100RLT Pump & Citric Acid Package includes two items: the Iwaki MD-100RLT Pump & Citric Acid. The Citric Acid is for creating a solution for cleaning the pump. Iwaki Pumps are expensive, and you'll want to keep them clean to insure longevity (they can last 20 years if treated well).

The Iwaki RLT type aquarium 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 MD pumps have Japanese motors.

Iwaki MD-100RLT Pump Features: Flow rate: 2000 gph; Max head: 39.0 feet; Amps: 3.4; Dimensions 12.75" X 6.2" X 6.9"; Connections: 1" MPT Inlet / 1" MPT Outlet.

Why do you need the Inland Seas Citric Acid? Over time, aquarium pumps and powerheads can start to have mineral deposits or coralline algae build-up, which can hamper the performance. Keeping your pumps clean will lead to a longer life and better efficiency. Just create a liquid solution with the Inland Seas Citric Acid, and after a quick soak, deposits will start to dissolve, requiring minimal effort for complete removal.