Taco 005-F2 Cast Iron Circulator Pump Standard High Capacity Output Compact Design - Quiet, Efficient Operation Unique Replaceable Cartridge Design-Field Serviceable - Direct Drive-Low Power Consumption Self-Lubricating - No Mechanical Seal - Unmatched Reliability --Maintenance Free Universal Flange-to-Flange Dimensions - Cast Iron or Bronze Construction This product runs using a 0.028 (1/35) horsepower motor