MaxiJet Submersible Pumps Maxi Jet submersible pumps feature a magnetic drive, along with high performance and low power consumption. Designed to be used either externally or submerged, MaxiJet pumps are both versatile and silent. MaxiJet pumps incorporate a thermally protected motor, and a waterproof rotating water outlet for years of convenient, trouble free use. Please note that Maxi Jet pumps are rated in Litres Per Hour. Used in the large NFT, Wilma, Ebb & Flood and Aeroponic systems amongst others. Also suitable for DIY systems.