Skip Content

Pump,1/3 HP,1 Phase,115/230V,8 Stage close
close x

Using 360° Viewing:

  1. Rotate: Use top-to-bottom, side-to-side by use of mouse arrow.
  2. Zoom In: Double click on image.
  3. Zoom Out/Reset: Put photo at full zoom & then double click.
Megaphone How can we improve our Product Images?

Pump, 1/3 HP, 1 Phase, 115/230V, 8 Stage

Price $539.00 / each

Activate Now

to save with

Select AdvantageSM

Please sign in or register to access lists

Confirm ZIP Code to determine availability.


Invalid Zip Code


Ship to: (Change)


Invalid Zip Code

  • Item # 22W709
  • Mfr. Model # PB0508A031
  • UNSPSC # 40151503
  • Catalog Page # 3718
  • Shipping Weight 38.1 lbs.
Country of Origin USACountry of Origin is subject to change.
Note: Product availability is real-time updated and adjusted continuously. The product will be reserved for you when you complete your order. More

Technical Specs

  • ItemMulti-Stage Booster Pump
  • HP1/3
  • Phase1
  • Voltage115/230
  • Amps8.6/4.3
  • Inlet3/4" FNPT
  • Outlet3/4" FNPT
  • Stages8
  • GPM @ 10 PSI9.5
  • Max. Pressure87 psi
  • Housing MaterialCast Iron
  • Impeller MaterialNoryl
  • Impeller TypeClosed
  • Max. Case Pressure300 psi
  • Max. Fluid ViscosityClear Water
  • Max. Liquid Temp.140 Degrees F
  • Motor EnclosureODP
  • Seal TypeMechanical Type 21
  • Seal MaterialStainless Steel, Buna N and Carbon/Ceramic
  • Wetted MaterialsNoryl,304 SS,CI,316 SS,Carbon,Ceramic,Buna N,BZ
  • RPM3450
  • Motor TypeCapacitor-Start
  • NEMA/IEC FrameNEMA 56J
  • ApplicationPressure Boosting, Pressure Cleaning, Spray or Mist Systems, Reverse Osmosis, Water Circulation
  • Agency ComplianceCSA, CUS, UL Listed
  • Manufacturers Warranty Length1 yr.
  • IncludesKit/Motor Cover Vertical
  • Length20-1/4"
  • Width6-1/2"
  • Height9"
  • Bearing TypeBall
  • Best Efficiency GPM @ Head6 gpm @ 150 ft.
  • Best Efficiency Range GPM @ Head7.5-4 gpm @ 115-150 ft.
  • Diffuser MaterialNoryl
  • DutyContinuous
  • Hz60
  • Motor Ambient Temp. Rating65 Degrees C
  • Plug or Connector TypeDirect Wire
  • Seal ApplicationClear Water
  • Service Factor1.75
  • Shaft Material303 SS Shaft, 316 SS Coupling
  • Suction Lift0 ft.
  • GPM @ 20 PSI8.2
  • GPM @ 40 PSI7.3
  • GPM @ 60 PSI5.8
  • GPM @ 80 PSI3.5
Megaphone How can we improve our Technical Specifications?

Compliance and Restrictions

  • This product has been certified by a third party to be compliant with the “Safe Drinking Water Act” requirements for low lead in potable (human consumption - drinking and cooking) and non-potable water applications (non-human consumption).

Repair Parts

Displaying repair parts for model:
  • PB0508A031,
  • PB0508A032

Product Reviews Disclaimer:
Grainger is neither responsible for, nor does it endorse, the content of any product review or statement posted. Any statements posted constitute the statements of the poster and are not the statements of Grainger. The statements posted by Grainger employees with the Grainger employee badge represent the views of such employees and are not the statements of Grainger. Grainger makes no representations as to the appropriateness, accuracy, completeness, correctness, currentness, suitability, or validity of any product review or statements posted, including those posted by employees with the Grainger employee badge, and is not liable for any losses, injuries or damages which may result from any such product review or statements. Use of any linked web site provided in a product review or post is at the user's own risk.