Universal Compatibility: Designed to retrofit various RTU brands with standard 2-10 VDC or 4-20 mA control signals

Integrated End Switch: The SPST auxiliary switch allows for seamless communication with the circular pump or boiler burner circuit

compression-based seal

As the direct replacement for the E5-232A

outdoor applications require a dedicated weather-shielded housing to prevent moisture ingress

Grundfos 00519652 Flange Set 321142-301 Universal Compatibility: Designed to retrofitThe Grundfos 00519652 Flange Set is a professional grade 1" FNPT hardware kit engineered specifically for the Grundfos UP Series and UPS Series circulator pumps. As a veteran technician knows, using the correct bronze pump flanges is critical in open loop or potable water systems to prevent the accelerated corrosion and "red water" issues common with standard cast iron components. This GF 15 26 flange kit ensures a leak free, high integrity connection