Grundfos 59896114 UP15-18B5 Bronze Circulator Pump 1/25 HP 115V 1/2" Sweat

The Grundfos UP15-18B5 is a reliable bronze circulator pump designed for residential and light commercial hydronic heating systems. This compact circulator features a 1/25 HP motor operating on 115V power, making it ideal for small to medium-sized heating loops and radiant floor systems.

Key Features:

• Bronze construction provides excellent corrosion resistance for potable water and heating applications
• 1/2 inch sweat connections for direct soldering to copper pipe
• Single-speed operation delivers consistent, reliable circulation
• Compact design allows installation in tight spaces
• Permanent lubrication maintenance-free motor
• Replaceable cartridge design simplifies service and repair
• 115V single-phase power for standard residential electrical systems

The UP15-18B5 circulator pump is engineered for open hydronic systems including baseboard heating, radiator loops, and radiant floor heating applications. Its bronze housing makes it suitable for both potable water circulation and closed-loop heating systems where corrosion resistance is essential.