Pentair Challenger CH 2 HP 115/230V Single Speed, UR Pump - CHII-N1-2A


Part # 346201

By Pentair Pool Products



Part # 346201

Warranty 1 Year (See Pentair Warranty Card)

Manufacturer Code CHII-N1-2A

Alternate Part #'s CHII-N1-2A, PEN346201

Product Description

Inyo Recommended Pumps

Challenger® high pressure pumps are designed specifically for applications requiring higher pressure operation to feed multiple needs beyond pool water circulation. These needs include spa jets, in-floor cleaning systems, as well as decorative water features like waterfalls and fountains. Plus, they provide effective power while remaining highly efficient and delivering years of unattended performance. Challenger pumps come equipped with rugged fiberglass reinforced housing that features closed impellers and durable, custom-molded thermoplastic components that stand up to high pressure operation year after year. Beyond efficiency, the top criteria for your pump should be long, trouble-free life and easy service. Challenger® high pressure pumps perform year after year because of superior design and the most rugged construction. Service-friendly features make routine maintenance a snap.


  • Proprietary hydraulic design reduces friction and turbulence so more water races through your system with less noise and greater energy efficiency.
  • Standard 2 inch suction and discharge ports permit maximum operating efficiency.
  • Extra-large strainer basket extends time between cleanings.
  • Transparent strainer pot lid with comfortable handle provides easy access to strainer basket.
  • Unique diffuser and impeller provide excellent high pressure performance for all types of demanding installations.
  • One-bolt stainless steel clamp removes easily to provide quick access for any required service.
  • Power end can easily be removed for service or winterizing without disturbing piping or pump support base.
  • No tool required for removing thumbscrew drain plugs for draining and winterizing.
  • Internal components and 2 inch ports are designed to provide rapid priming and quiet operation.

Product Specs:

  • Voltage = 115/230V
  • Horsepower = 2 HP
  • Motor: Single-Speed, Up-Rated
  • Full Load Amps = 22.4/11.2
  • Service Factor = 1.10
  • Pipe Size = 2"

Product Specifications

2 HP
115/208 - 230 V
21.0/10.0 - 10.5
Port Size:
2 in.
Service Factor:

?     Asked on 7/28/2021by Thomas

Now that this pump is discontinued, what is the appropriate replacement pump model?

A  Answered on 7/29/2021 by InyoPools Product Specialist Stephen B.

Thank you for contacting Inyo Pools, This would be a good selection to replace your existing Pump. Hayward TriStar 2 HP, Max Rated Pump -  W3SP3215X20 Currently showing we only have one in stock

?     Asked on 5/17/2020by Inyo Visitor

Can I get just the strainer cover?

A  Answered on 12/4/2020 by InyoPools Product Specialist Hector F.

Hello, the strainer cover lid for the Pentair Challenger pump series less than 5 horsepower is part number 25305-000-020.

?     Asked on 7/17/2019by Mike

I have a Pentair Challenger 2 pump CHII-N1-2A with a 2hp Century Centurion 1.1 SF 230v single speed motor (PN 0-177897-22). I want to replace the power hog single speed with a variable speed, and thinking the AO Smith Century VGreen 165 Square Flange Variable Speed Pool Motor 1.65HP 230V or equivalent would work, but wanted to make sure I didn't need to also swap the impeller. I intend to replace the seals (impeller, pump split, etc).


A  Answered on 7/17/2019 by InyoPools Product Specialist Rose J.

You will not need to change the impeller. The correct variable speed motor model is the ECM27SQU and the seal kit recommended is the GOKIT5.

  • Commented on 7/17/2019 by Product Owner

    Thanks for the response I intentionally want to downrate the pump and run it longer/lower speed It seems the ecm16squ is a lower cost alternative with the same bolt pattern and shaft diameter With the 27 at around $600 and the 16 at $400, it seemed like a consideration worth delving into even if a $50 impeller was needed to attain necessary water flow

?     Asked on 3/24/2016by Mike

Do you have a pentair pump (346201) that is just the pump and not the skimmer basket? I don't see it on your site.

A  Answered on 3/24/2016 by InyoPools Product Specialist Andy O.

Mike, Unfortunately, they only sell the challenger model 346201 Pentair Challenger 2 HP 115/230V Single Speed, UR Pump with the front strainer as a complete pump. Otherwise you would have to buy the parts one by one, which you can see on this parts diagram.