External use - Pump must be used outside of pond only Ideal for indoor or outdoor use Easy to maintain since the pump is out of the pond. Thermally protected, enclosed, fan cooled, permanent split capacitor motor Motors are enclosed for excellent protection and weather resistance. For larger systems, plumb two or more units in parallel to economically multiply the flow. US, CSA Certified 115 Volt Standard Power or wire for 230 volt Cost-saving, energy efficient operation 1-1/2" FPT Intake and 1-1/2" FPT Discharge 1 Year Limited Manufacturer's Warranty