Grundfos Pumps 506174

Grundfos Pumps 506174 is a Replacement Cartridge Assembly designed for the UP15 family. This OEM-grade cartridge replacement fits multiple configurations: 115/230V UP15-18B5/B7, 115V UP15-8BUC5/BUC7, 115/230V UP15-20SPA, 230V UP15-18SU/SF, and 115/230V UP15-15SPA.

Built for reliable performance, it ensures steady flow, protects pump internals, and minimizes downtime during maintenance. As a genuine Grundfos spare part, it preserves efficiency and extends service life of your circulating pump. Simple to install, it suits both residential and light-commercial applications, keeping your system running smoothly.

• OEM-grade replacement cartridge for UP15 series pumps
• Compatible with 115/230V configurations UP15-18B5/B7, UP15-8BUC5/BUC7, UP15-20SPA, UP15-18SU/SF, UP15-15SPA
• Maintains steady flow and optimal pressure for reliable operation
• Durable construction using Grundfos-spare-parts-grade materials
• Easy installation minimizes downtime for residential and light-commercial systems