• Indoor/outdoor Magnetic-Drive Recirculation Pumps are ideal for hydroponic systems, ponds and more • Oil free and environmentally safe • One year manufacturers warranty • Available in 500 GPH and 700 GPH flow rates Heavy-duty Danner Mag-Drive Pumps are fully submersible or can be used as inline pumps • 1/2 FPT inlet • 1/2 MPT outlet • Includes exclusive fine mesh foam pre-filter, impeller and exclusive hose/thread adaptor