Grundfos UP43-70F Cast Iron Circulator Pump, 1/2 HP, 115/230 volt

The UP43-70F is a single-speed circulator with a wet-rotor fluid movement design. Solid cast iron construction guarantees years of reliable performance with minimal maintenance needs, while hardwire electrical connection design allows the pump to tap directly into your home's electrical supply. Product Features: Durable Cast Iron Construction - The Grundfos UP43-70F is crafted from cast iron, which gives the pump both extended lifespan and protection against corrosion. Whisper Quiet Operation - The UP43-70F pump runs quiet even at high flow levels, ensuring the pump won't distract you from your work or disrupt your sleep. Resilient Wet-Rotor Fluid Movement - The wet rotor design of the UP43-70F lends integrity to both the motor and the rotor itself, providing exceptional longevity to any hydronic system the pump is a part of.