UPS15-58FC 3-Speed Circulator Pump w/ IFC, 1/25 HP, 115V


Brand: Grundfos

Mfr Part#: 59896341

Model: UPS15-58FC

UPC#: 632514100985

Availability: In Stock
Usually ships: within 1 business day
Qty Price
$90.95 / each & Free Shipping
x4 $351.80 & Free Shipping
(4 x $87.95 / each)
  • Description
  • Literature
  • Reviews (4)
  • FAQs (4)

Grundfos UPS15-58FC circulator pump (Grundfos# 59896341) incorporates a cast iron housing, three speed motor (Low/Med/High) and a built-in, removable check valve. Grundfos UPS15-58FC is among the most popular and most versatile circulator pump models on the market. Pump's performance parameters cover nearly all traditional heating applications - from radiant and baseboards, to fan coils and zoning and many others. 3 speeds allow to set up the circulator pump in a way, that matches the system's requirements, while wet rotor design allows it to be virtually silent while operating.


  • Closed loop radiant heating & snow melting systems.
  • Baseboard/Radiator/Fan coil heating and other hydronic heating applications. 


  • Built-in motor protection for longer life and better performance.
  • Suitable for a wide range of applications, including radiant heating, hydronic heating, fan coil heating, solar and other system types.
  • Whisper-quiet operation for sound sensitive installations.
  • Includes (2) Gaskets (O-rings).
  • UL/CSA listed.

Technical Specifications:

  • Voltage: 115V;
  • Amperage at Speed 1: 0.55 Amps;
  • Amperage at Speed 2: 0.66 Amps;
  • Amperage at Speed 3: 0.75 Amps;
  • Hertz: 60 Hz;
  • Phase: 1;
  • Watts at Speed 1: 60W;
  • Watts at Speed 2: 80W;
  • Watts at Speed 3: 87W;
  • Max Pressure: 145 psi;
  • Max Temperature: 230F;
  • Min Temperature: 36F;
  • Flow Range: 0-17 GPM;
  • Head Range: 0-19.5 ft;
  • Horse Power: 1/25HP;
  • Body: Cast Iron
  • Connections: Flanged 1/2", 3/4", 1", 1-1/4".


3 years manufacturer's warranty.
UPS15-58FC 3-Speed Circulator Pump w/ IFC, 1/25 HP, 115V has an average 5.0 out of 5 rating based on 4 user reviews.
3 of 3 people found this review helpful.
it did every thing i wanted
By tom the roofer (from kennewick wa) on 7/30/2011
i used this pump for my solar system for my pool it did much better than i thought it would the pump i bought was the grundfos ups-15-58f3 i would buy it again thank you
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1 of 1 people found this review helpful.
Super Quiet pump
By kilowatt (from Rockport Texas) on 6/21/2011
"Just installed it and i am very satisfied. The flow is constant ,and very quiet, so much that i have to touch it to see if it is running. We use our pump for circulating our pond water thru the bio filter. WORKS GREAT kilowatt"
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Excellent product
By Motel owner (from Miami Florida ) on 4/16/2013
Second one bought!
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1 of 2 people found this review helpful.
Excellant product
By SuperDave (from Moncton, NB) on 1/11/2012
Used this on my boiler for closed loop hotwater home heating. Bolted right up from old unit. No additional plumbing. Loved the quick connect terminals in the conection box. very quiet.
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Does this pump needs to be connected to the electrical power all the time or there' got to be a switch ?Thank you.
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1 of 2 people found this answer helpful.
Circulator pumps are typically installed in conjunction with an external control, which acts as a switch. The most common way is to use a zone control (switching relay), such as Grundfos UPZCP. The control creates an interface between the pump, boiler and thermostat and when the latter calls for heat, the pump and boiler are switched on.
Answered on 7/8/2016 by PexUniverse Customer Service
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What is the difference between the FC and FRC model?
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5 of 6 people found this answer helpful.
FC models have a flange with holes for bolts perpendicular to the motor. The FRC's are models with "rotated" flange, which has bolt holes in line with the motor. These options are designed to accommodate different positions of the circulator during the installation.
Answered on 5/4/2015 by PexUniverse Customer Service
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Is this pump acceptable for potable water?
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1 of 1 people found this answer helpful.
No. You will need to use either stainless steel or bronze circulator for potable water applications.
Answered on 3/27/2015 by PexUniverse Customer Service
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Hi, is this pump available with a 1 1/2" flange size? It is replacing an older UPS 20-42 3 speed which is located on my boiler return nipple. I will be re-piping the new pump to the supply side along with an expansion tank and air separator but need a 1 1/2" flange.Thanks
Read 1 answer
All Grundfos UP15 (UPS15) through UP26 (UPS26) allow for maximum 1-1/4" flange. Only models UPS43 and up allow for 1-1/2" flange connection.
Answered on 7/30/2012 by PexUniverse Customer Service
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