SunEarth SRS-FLOWBOX | SolarStation Pump Group with Line Cord
SunEarth SRS-FLOWBOX | SolarStation Pump Group with Line Cord is backordered and will ship as soon as it is back in stock.
SunEarth SolarStation FlowBox Pump Group with Pump & Line Cord
SRS-FLOWBOX • Closed-Loop Solar Thermal Pump Group • Grundfos UPS15-58U Circulator
The SunEarth SolarStation FlowBox (SRS-FLOWBOX) is a preassembled pump group designed for residential closed-loop solar domestic hot water systems. The unit combines a three-speed circulator with the hydraulic components needed for fluid circulation, filling, purging, and routine system monitoring.
Built around a Grundfos UPS15-58U three-speed circulator, the FlowBox includes fill and purge valves, a flow meter, temperature gauges, pressure instrumentation, a pressure relief valve, and an air separator. These integrated components reduce the amount of field-installed plumbing required for a typical indirect glycol solar system.
The station is housed in a compact insulated enclosure manufactured from expanded polypropylene foam. The removable housing provides access to the internal hydraulic components while helping reduce heat loss and maintain a professional appearance in the mechanical space.
A pump line cord is included for connection to a compatible solar differential controller. The controller and solar expansion tank are sold separately.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Preassembled Pump Group | Reduces field plumbing work and simplifies installation. |
| Grundfos UPS15-58U Pump | Three-speed circulation supports compatible solar loop designs. |
| Fill & Purge Valves | Provide connection points for charging, flushing, draining, and servicing the glycol circuit. |
| Flow Meter & Balancing | Assists flow adjustment and commissioning. |
| Temperature Gauges | Permit visual monitoring of solar loop operating temperatures. |
| Pressure Gauge | Supports monitoring of system pressure. |
| Pressure Relief Valve | Provides overpressure protection when properly installed in the system. |
| Air Separator & Vent | Helps release trapped air during system filling and operation. |
| Insulated Housing | Expanded polypropylene enclosure provides thermal insulation and service access. |
| Included Pump Line Cord | Facilitates connection to a compatible external solar controller. |
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | SunEarth |
| SKU | SRS-FLOWBOX |
| Series | SolarStation FlowBox |
| Product Type | Closed-Loop Solar Pump Group |
| Application | Residential Solar Domestic Hot Water |
| Fluid Circuit | Indirect Closed-Loop Solar Heat Transfer |
| Circulator Model | Grundfos UPS15-58U |
| Pump Speeds | Three |
| Pump Power Supply | 115/120 VAC, 60 Hz (confirm nameplate) |
| Maximum Pump Power | 128 W referenced in SolarStation specification; verify for SKU |
| Maximum Collector Area | Up to 160 ft² in SolarStation reference specification; verify application |
| Flow Meter | Included |
| Temperature Gauges | Included |
| Pressure Gauge | Included |
| Pressure Relief Valve | Included |
| Air Separator | Included |
| Fill & Purge Valves | Included |
| Insulated Enclosure | Expanded Polypropylene Foam |
| Pump Line Cord | Included |
| Differential Controller | Not Included |
| Expansion Tank | Not Included |
Product Highlights
- Genuine SunEarth SRS-FLOWBOX pump group.
- Designed for residential indirect glycol solar water-heating systems.
- Includes Grundfos UPS15-58U three-speed pump.
- Factory-integrated filling, purging, balancing, and monitoring components.
- Built-in temperature and pressure gauges.
- Pressure relief valve and air separator.
- Compact insulated polypropylene enclosure.
- Includes pump line cord for external controller connection.
- Controller and expansion tank sold separately.
Technical Documents
- SunEarth 2026 Product Catalog (PDF)
- SolarStation Specification Sheet — PDF upload pending
-
SolarStation Installation Manual
- SunEarth SolarStation Warranty — PDF upload pending
Installation & Availability: Select the pump group using verified flow, head, system pressure, and collector sizing requirements. Install with appropriate external controls and expansion provisions. Confirm exact-SKU availability and current technical specifications before ordering.
SunEarth SRS-FLOWBOX | SolarStation Pump Group with Line Cord
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Let customers speak for us
The mini ultra boiler i purchased was built very strong and worked great after being installed.
Price was right
This is a great unit for anyone who is on a well!!
Great pump and great price. I actually ordered from a human being and they were great
Very nice expansion tank. Mine is a 16 gallon. Has feet so it will sit on the floor next to your boiler and doesn’t have to be mounted on the wall.
It’s sturdy enough to support your Air Separator, Pressure Regulator and Backflow Preventer.
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We live in an old 2 story brick farmhouse built in 1814! This unit replaced an Outdoor Wood Boiler with a 750 gallon tank. It was about 30 years old and last winter the tank rusted thru and busted.
We have 11 cast iron “American Radiators” and they heat the house well.
The BTH will heat all the water to 150 degrees in about an hour and we don’t have to build a fire and wait hours.
The most impressive part is the Outdoor Temperature sensor. When it’s not that cold outside, the unit doesn’t turn on all the elements at once and slowly heats the water which saves a lot of electricity in the warmer months!
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Thanks.
The boiler works great easy install. But the tech support we got hold of was in French so not a lot of help.manual was easy to follow on wiring
Easy purchase - exactly what I needed
Plumber was very happy with it. So are we.
I’ve been using Everflux for some years now and it’s simply the best there is.
Excellent product for descaling tankless water heater.
Once again, great quick service
Good go,, 👍👍👍
Great service. Happy to find the products I needed.
Great place to order from. No complaints.
