Grundfos UP43-75F


Pump, Circulator, 1/6 HP

UP43-75F 77683
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$328.13 + 3 Business Day Shipping $17.35

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TypeClosed Loop
ItemCirculator Pump
Housing MaterialCast Iron
Face to Face Dimension (In.)8-1/2
Max. Temp. (F)230
Max. Working Pressure (PSI)145
Flange/Union IncludedNo
Shut-Off (Ft.)26.0
Thermal ProtectionAuto
GPM of Water @ 1 Ft. of Head44.5
GPM of Water @ 2 Ft. of Head43.0
GPM of Water @ 3 Ft. of Head41.8
GPM of Water @ 4 Ft. of Head40.3
GPM of Water @ 5 Ft. of Head39.0
GPM of Water @ 6 Ft. of Head37.5
GPM of Water @ 7 Ft. of Head36.0
GPM of Water @ 9 Ft. of Head34.5
GPM of Water @ 10 Ft. of Head32
GPM of Water @ 11 Ft. of Head29.8
GPM of Water @ 13 Ft. of Head26.5
GPM of Water @ 15 Ft. of Head23.0
GPM of Water @ 20 Ft. of Head13.5
GPM of Water @ 25 Ft. of Head3.5
Length (In.)6-11/16
Width (In.)4-3/4
Max. GPM @ Head (Ft.)44.5 @ 1
Best Efficiency GPM @ Head (Ft.)20 @ 16
Min. GPM @ Head (Ft.)3.5 @ 25
Drive TypeDirect
Construction30 Percentage Glass-filled Polyether Sulfone
Includes Gaskets
Weight 14.000000
SKUs 4PD09, GRUUP43-75


  • Hot Water Return Pumps
  • Max. working pressure: 145 psi
  • Max. temp.: 230°F (except 4HY93 is 200°F)
  • Maintenance-free
  • Water lubricated can and rotor system
  • Flanges sold separately
  • Cast-Iron
  • Designed for domestic and light commercial closed-loop water circulating systems such as hydronic heating, heat pumps, low-pressure boosting, and general water circulating systems. Do not use for potable water systems.
Circulator Pump, Closed Loop, 1/6 HP, 1 Phase, Voltage 115, 2.15 Amps, Inlet/Outlet Flanged, Housing Material Cast Iron, Max. Temp. 230 F, Max. Working Pressure 145 PSI, Shut-Off 26.0 Ft., 3150 RPM, Auto Thermal Protection

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