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Main product image of UPS15-55SFC Stainless Steel 3-Speed Flanged Circulator Pump, 1/12 HP, 115 V
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UPS15-55SFC Stainless Steel 3-Speed Flanged Circulator Pump, 1/12 HP, 115 V

Brand:
Grundfos
SKU:
59896773
Rating:
(22)
Q&A:
(6)
UPS15-55SFC Stainless Steel 3-Speed Flanged Circulator Pump, 1/12 HP, 115 V
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$523.37 each
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In Stock
Get 24 Tue, Jun 9
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Product Highlights

Product Highlight: Voltage
115V
Product Highlight: Connection Type
Flanged x Flanged Connection
Product Highlight: Max Flow (GPM)
25 MAX GPM
Product Highlight: Max Pressure (PSI)
145 MAX PSI
Product Highlight: Material
Stainless Steel
Product Highlight: Temperature Range (F)
36°F - 230°F

Description

Note: If the UP pump is equipped with a timer, the maximum liquid temperature is 150 °F (66 °C).

Features:
  • Perfect for hot water recirculation applications
  • Stainless steel - Protects against corrosive fluids
  • Flanged
  • Check Valve
  • Pump Connection: GF 15/26 Flange
  • 3-speed SuperBrute technology available
  • Timer and line-cord options available
  • Integrated, removable check valve
  • Quick connect terminals for easy installation
  • Highest starting torque in its class
  • Industry leading three-year warranty

Specs

Frequency:

60 Hz

60 Hz

60 Hz

Type:

3-Speed Pump

Material:

Stainless Steel

Application:

Heating

Voltage:

115V

Hertz:

60

Phase:

1

Max Pressure (PSI):

145

Flow Range (GPM):

0-25

Max Flow (GPM):

25

Poles:

2

Head Range (ft.):

0-18

Max Head (Ft):

18

Temperature Range (F):

36°F - 230°F

Connection Size:

3/4"

1"

1-1/4"

1-1/2"

Mount:

In-Line

Connection Type:

Flanged x Flanged

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Compare Similar Products

Brand
Type
Material
Voltage
Hertz
Phase
3-Speed Pump
Stainless Steel
115V
60
1

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Product Reviews

4.68 out of 22 reviews
90% would recommend this product
4.68
out of 22 Reviews
90% would recommend this product
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5 star
86%
4 star
5%
3 star
5%
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Customer Images

Most Liked Positive Review

Thousands of Grundfos pumps since 1975

I have been using Grundfos pumps since 1975. This pump replaced a 23 year old one in a Hydronic Forced Air system.
VS

Most Liked Negative Review

Bad out of box

I purchased 3 of these on pumps on sale for inventory. Just installed the 2nd one this July 2025, and it ran for a few weeks. I used to have good luck with pumps from the supply house, but now it seems not so. I try to save $$ by purchasing from Supply, but it has ended up costing me more in labor hours. Hughes Mechanical LLC.
Showing 1-10 of 22 reviews

Bad out of box

I purchased 3 of these on pumps on sale for inventory. Just installed the 2nd one this July 2025, and it ran for a few weeks. I used to have good luck with pumps from the supply house, but now it seems not so. I try to save $$ by purchasing from Supply, but it has ended up costing me more in labor hours. Hughes Mechanical LLC.
HVAC? Plumbing contractor
Denver,co.
6 months ago
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Excellent Relacement. Fit in 35 year old system Perfectly

High qualty recirculating pump for Hot Water Maker. Perfect fit.
Ray
Seattle
1 years ago
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My last pump lasted for 23 years. Great quality!

When my original pump went out after 23 years, there was no question as to what I would replace it with. Same pump just an updated version.
Captain Gregg
Hilton Head Island, SC
2 years ago
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Cannot be more PERFECT !!!

Next Day Delivery as they promised excellent quality product Plug and play I love it
Hugo
Palo Alto, California
6 years ago
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My go to company from now on.

Grundfos pump working as it should for infloir radiant heating system. Great price and easy to install.
DMC
Deer Park, Washington
7 years ago
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quality equipment

This pump replaces a Grundfos pump that was over 20 years old. It was here when I came in 1998 but it finally gave up. I'm pretty sure this new Grundfos will be running long after I'm gone.
noexcuses
Dallas TX
7 years ago
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Seamless return

Seamless return. Although I was not happy that the first pump failed after three seconds of running, supply house quickly got me a replacement pump and made the return of the defective one simple.
TP
Blowing Rock North Carolina
7 years ago
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GRUNDFOS PUMP

USED FOR RADIANT FLOOR HEATING. GREAT PUMP.
Gregory
NE
7 years ago
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I hope I won't need another.

I had the Watts hot water circulating system and after spending close to a thousand dollars it didn't work. Watts techs were not surprised and told me to return it. I only works on the most basic systems. This pump, however, worked on the middle speed with the Grunfos valve and a separate timer. It works like a charm!
Tim_the_Tiller
Long Island, NY
8 years ago
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Grundfos UPS15-55SFC, The UPS15-42SF replacement

Grundfos UPS15-55SFC works fine. It is a three speed. The top speed matched the single speed of the original UPS15-42SF that I replaced. Stainless Steel is important for potable water (drinking and cooking water). I used this for the hot water heater recirculating throughout my entire house. There are conflicting recommendation for closed system pumps. Some say you can use the Grundfos iron pumps UP15-42F. I do not recommend that. They will rust in a closed system which is bad for your health to consume. You have to use stainless steel on an open system. Make sure that you order the proper head max that can push hot water to the height of your plumbing fixtures. I needed 18ft. If it were a standard 2 story house height, you could probably get away with buying the UPS15-35SFC with a max push height of 12 ft. Grundfos makes great pumps, just make sure you buy it from a reputable company that understands how to ship them properly. Supply house has been great at that.
Ash
Hermosa Beach, CA
8 years ago
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Product Q&A

6 Questions
6 Questions
ASK A QUESTION

Q: Hi, my 25 year old UP25-64sf just died, is the replacement a direct bolt in. Also, can I purchase the motor replacement alone? Thanks Tony

Asked by Tony 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

Yes, the UPS15-55SFC is the direct replacement so it should bolt right into the existing flanges. There is a replacement cartridge for this current pump which is sku 599409.

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Q: can this be used on hot water recirc.for potable water.to replace bronze taco 008.am trying to save $ and not buy bronze again.

Asked by russell 10 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

This certainly can be used for hot water recirculation. The 008 bronze pump has been replaced by the 008-SF6 which is also a stainless steel pump but this would be a perfectly fine alternative as well, it has the 3 speed options so just compare the pump curves for accurate specification adjustments.

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Q: my Grundfos 59896145 just went out. Whats the big difference between the two? My old one cost 3x more, is it any better then this one? I'm using it to recirculating hot water loop.

Asked by Twin 11 years ago

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Verified Author and ReplyVerified Reply- SupplyHouse Staff

The main difference is the material, the original pump sku 59896145 is made of Bronze, and this pump is made of Stainless Steel. Also this pump is a three speed and has wider GPM and Ft of head ranges, where as the other is a single speed.

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Q: Which side is the intake?

Asked by Dick 13 years ago

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There is an arrow on the side or bottom

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-

There is an arrow on the side of the body that tells you which direction the flow goes.

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-

The direction of flow is indicated by a arrow inscribed in the metal of the base. You can reorient the motor to suit your installation needs.

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-

The intake routes the liquid into the eye of the impeller, so it wraps down and then up into the center of the bottom of the pump case. It should have an arrow showing flow direction cast into the the case - see attached photo. JRC

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Q: Which flanges go with the stainless steel pump? Is there a stainless flange? bronze?

Asked by 15 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

This pump works with standard flanges. You will want to use either bronze or stainless steel. Taco makes stainless steel flanges that work with this pump.

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- Marko

Any flange of the same shape should match up with this pump.

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- Chris

I am not aware of any stainless flanges. Bronze flanges come with the kit and they work fine for any system.

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Q: I have a return hot water system that has been iN service for 9 years. It recently failed. I am looking for another with a timer. WHAT DO YOU SUGGEST?

Asked by Robert 16 years ago

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Verified Author and ReplyVerified Reply- PexSupply Staff

We would suggest a UP10-16BN5/ATLC, (SKU: 96433899) for your system. This UPS15-55SFC has a timer as well.

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- Solar Stroller

Grundfos has one with timer. Make sure the return line has a check valve and hose bib between the pump and water heater for purging the entire hot water return piping. I just replaced one that had been running without purging the line and the pump was ruined because of a faulty installation.

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