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PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack1 / 7
Product guide

PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack

Filter: PUREPLUS CTO10 is a 1-micron carbon replacement cartridge listed for whole-house water filtration. The four-pack uses a stated 2.5-inch by 10-inch format, and the listing claims reduction of chlorine, sediment, and related particles. Confirm that your housing accepts this cartridge size and the model compatibility you need.

At a glance

  • One-micron carbon cartridge in a claimed four-pack for compatible 2.5 × 10-inch housings.
  • Listing claims reduction of chlorine, odor, sand, rust, sediment, and color. It also claims IAPMO certification against NSF/ANSI 42.
  • Claimed capacity is up to 13,000 gallons, with replacement timing dependent on water quality and use.
Price
$26.98Save 10%

Reference price: $29.99

Price checked: Nov 12, 2026

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Often bought together

Pros and cons

Pros

  • Four cartridges provide replacements in one purchase.
  • The claimed standard 2.5 × 10-inch format and compatibility list may help when matching an existing housing.
  • Customer feedback describes improved chlorine taste and odor and generally easy installation.

Technical specifications

12 specifications
Identity
Brand shown in technical detailsARBrend
ModelCTO10
Dimensions and installation
Dimensions listed2.5"D x 3.44"W x 10"H
Weight listed1.56 kg
Materials and filtration
Material listedCarbon
Micron rating1 Micron
Claimed certificationIAPMO
Claimed filtration benefitsRemoves chlorine, sand, rust, sediment, and color
Claimed capacity13000 gallons depending on water quality
Suggested replacement interval3- 6 months
Pack and compatibility
Listed compatible purifier modelsGE GNQH38S, GE GNWH38S, GE GXWH30C, GE GXWH35F, GE GXWH40L
Other claimed compatible modelsDuPont WFPFC8002, WFPFC9001, SCWH-5, Whirlpool WHCF-WHWC, Pentek CBC-10, GE FXWTC, FX12P, GXWH20F, Culligan D-10A & D-10, Aquaboon CTO, Ace Hardware 84608, Apex IR-40, Cornelius COR10B1, COR10B5, Dupont DWC30001, PFC8002, WFDWC30001, WFPFC8002, WFPFC9001, 46942, EcoLab 9320-1002, Everpure CG5-10, DEV9108-15, Flotec TO1, ICEPURE CTO10

What to know before buying

  • The stated 13,000-gallon capacity depends on water quality. The listing suggests replacement every 3–6 months, and its FAQ recommends six months or earlier if taste changes or flow drops significantly.
  • The listing says to flush a new filter for 5 minutes and shut off the water supply before replacement.

Listing details to confirm

The listing has inconsistent identity and pack details: the title and brand identify PUREPLUS, while the technical manufacturer field says ARBrend. It lists four units but says the included-components count is 1. The page also describes compatibility with standard 10-inch whole-house/RO housings and a long model list, while its product-benefits field claims chlorine, sand, rust, sediment and color reduction. Check the cartridge and housing fit for your exact system before buying.

What’s in the box

  • Filter cartridge quantity: 1 listedCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

  • Owners of a compatible whole-house or other listed 2.5 × 10-inch filter housing who want a multi-cartridge supply.
  • Buyers seeking a carbon cartridge marketed for chlorine taste, odor and sediment reduction.

Less suited to

  • Anyone who needs a filter independently verified for their specific contaminants or system. The provided listing does not establish that suitability.
  • Buyers whose housing requires a different cartridge size or whose exact model fit has not been confirmed.
PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack · photo 2
Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 7,993 ratings
  • 5 stars80%80%
  • 4 stars12%12%
  • 3 stars4%4%
  • 2 stars1%1%
  • 1 star3%3%

Customer feedback highlights perceived improvements in chlorine taste and odor, particle filtration and ease of installation. Those reports may matter to buyers using a compatible housing for routine taste and sediment filtration, but they do not verify the listing's certification or claimed capacity. Feedback is mixed on durability, with some reports of the cartridge coming apart, and customers also describe leakage and difficulty compressing the seal. Careful fit and sealing during installation are important considerations.

Positive themes

  • Customer feedback describes better chlorine taste and odor, effective particle filtration and easy installation.

Negative themes

  • Some customers report leakage at the housing and difficulty compressing the seal.

Mixed feedback

  • Durability feedback is mixed. Some report long service, while others say the filter came apart internally.

Frequently asked questions

What cartridge size is listed?

The title describes a 2.5-inch by 10-inch cartridge. The listed dimensions are 2.5"D x 3.44"W x 10"H. Match your housing requirements before ordering.

What does the listing say this filter reduces?

It claims removal of chlorine, sand, rust, sediment and color. A separate feature claim says it is IAPMO-certified against NSF/ANSI 42 and filters chlorine, odor and taste. These are listing claims, not independently verified performance.

How often should it be replaced?

The listing suggests every 3–6 months depending on use and water quality. Its FAQ also recommends six months or earlier if water taste changes or flow drops significantly.

Does a new cartridge need flushing?

The listing says to flush the new filter for 5 minutes before use and to shut off the water supply before replacing a cartridge.

PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack · photo 3
Additional product photo 3

Alternative options

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