Grundfos Pumps 506172 Circulating Pump Cartridge Kit

The Grundfos Pumps 506172 Circulating Pump Cartridge Kit is a high-quality replacement designed for UP15 circulating pumps. This cartridge kit provides a precise fit for dependable operation and minimal downtime, making it an ideal choice for maintaining steady water flow in residential and light commercial applications.

Designed specifically for the UP15 family, the kit matches the original part numbers UP15-18SF and UP15-18SU, ensuring compatibility with your existing pump assembly. By using a genuine cartridge kit, you preserve pump efficiency and reduce the risk of leaks or performance loss over time.

• Direct replacement for UP15-18SF/18SU — simplifies service without custom tools.
• OEM-grade cartridge components for reliable, long-lasting performance.
• Easy installation with minimal downtime.
• Maintains optimal flow and pressure in circulating systems.
• Suitable for residential and light commercial use with standard fittings.

Upgrade your circulator with the 506172 kit to restore peak efficiency and extend the life of your Grundfos UP15 pump today.