Check the listing for details. Supreme Hydroponics? Hydro-Mag Recirculating Water & Air Pumps. Condition: New. Listed at 59.99 USD. Supreme Hydroponics™ Recirculating Water & Air Pumps use adjustable venturi to add aeration into the nutrient-rich water flow, stimulating root growth. These energy-efficient, oil-free pumps can be used for in-line or submersible applications.Models 1.9 and 24 do not include venturiTime-proven magnetic drive technologyEnergy-efficient and oil-freeIn-line or submersible operationModel #Max FlowMax Watts/AmpsMax HeadInlet/Outlet40120190gph19W7'3/8"MPT/1.4"MPT40122250gph24W / 0.4A7'1/2" FPT/MPT40123350gph35W / 0.6A10.5'1/2" FPT/MPT40125500gph45W / 0.9A10.5'1/2" FPT/MPT40127700gph70W / 1.6A11.5'1/2" FPT/MPT40129950gph93W / 1.33A13.5'3/4" FPT/MPT401321200gph110W / 1.5A13.5'3/4" FPT/MPT401381800gph145W / 1.55A16.5'3/4" FPT/MPT401402400gph237W / 2.2A17'1" FPT/MPT SpecificationsPower Cord10 FeetWarranty5 Year Limited