Description
Overview
The Grundfos UPS-43-100SF (SKU 95906638) is a 115V wet-rotor circulator pump engineered for reliable performance in residential and light commercial hydronic heating systems. Designed with Grundfos’ proven UPS-series technology, this pump delivers consistent flow and pressure to keep hot water circulating efficiently throughout boiler loops, radiant floor systems, and baseboard heating applications.
Key Features
- 115V single-phase power supply for easy integration into standard residential electrical systems
- Wet-rotor design eliminates the need for external shaft seals and bearings, reducing maintenance requirements
- Compact, space-saving form factor suitable for tight mechanical room installations
- Quiet operation ideal for residential environments
- Durable cast iron construction for long service life in hydronic applications
- Suitable for use with closed-loop hydronic heating systems, boiler loops, and radiant heating
Application
The UPS-43-100SF is well-suited for a wide range of hydronic heating applications, including:
- Residential and light commercial boiler systems
- Radiant floor heating loops
- Baseboard and panel radiator circuits
- Domestic hot water recirculation
Why Choose Grundfos
Grundfos is a globally recognized leader in pump technology, known for engineering products that combine energy efficiency, reliability, and ease of installation. The UPS series has long been a trusted choice among HVAC professionals for its dependable performance and low total cost of ownership.
Specifications
- Brand: Grundfos
- SKU: 95906638
- Model: UPS-43-100SF
- Voltage: 115V
- Type: Wet-Rotor Circulator Pump
- Application: Hydronic Heating / Circulating Systems









