# 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.

- [Original product page](https://best-deals.pro/product/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [View offer](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- Market: US
- Language: en-US
- Currency: USD
- Brand: PUREPLUS
- Model: CTO10
- Price: 26.98 USD
- Previous price: 29.99 USD
- Discount: 10%
- Price checked: 2026-11-12T11:51:40.850Z
- Rating: 4.6 / 5
- Reviews: 7993

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## 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.

## 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.

## Specifications

### Identity
- Brand shown in technical details: ARBrend
- Model: CTO10
### Dimensions and installation
- Dimensions listed: 2.5"D x 3.44"W x 10"H
- Weight listed: 1.56 kg
### Materials and filtration
- Material listed: Carbon
- Micron rating: 1 Micron
- Claimed certification: IAPMO
- Claimed filtration benefits: Removes chlorine, sand, rust, sediment, and color
- Claimed capacity: 13000 gallons depending on water quality
- Suggested replacement interval: 3- 6 months
### Pack and compatibility
- Listed compatible purifier models: GE GNQH38S, GE GNWH38S, GE GXWH30C, GE GXWH35F, GE GXWH40L
- Other claimed compatible models: DuPont 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

## Before you buy

- 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.
- 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.

## In the box

- Filter cartridge quantity: 1 listed (Check selected pack): The package-details field says 1, but the title and unit-count detail claim a four-pack. Confirm the selected listing's quantity.

## 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.

## Customer feedback

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.

## Alternative options

- [PUREPLUS 5 Micron 10" x 4.5" Whole House Pleated Sediment Filter,2 Pack \| PPL10BB Replacement Cartridge for GE FXHSC, Culligan R50-BBSA, Pentek R50-BB, DuPont WFHDC3001, W50PEHD, GXWH40L](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [PUREPLUS 5 Micron 10 x 4.5 Whole House Water Filter for Well Water 2 Pack \| Compatible with WPX5BB97P, PC10, 355214-45, 355215-45, WP10BB97P, WP5BB97P. Recognized Certification - Food Grade Material](https://best-deals.pro/visit/pureplus-ppw10bb-05-5-micron-whole-house-filter-2-pack)
- [ICEPURE 20 Micron 10" x 4.5" Whole House Sediment and Carbon Filter 3 Pack \| PP10BB-CC Replacement for any 4.5" x 10" Cartridge, GE FXHTC, FXHSC GXWH40L GXWH35F GNWH38S, Culligan RFC-BBSA, Pentek RFC-BB](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [iSpring F3 Water Filter Set for Under Sink Water Filter System RCC7AK/US31 \| NSF Certified, For Standard Undersink/Reverse Osmosis RO Systems, Reduces Chlorine, Extends Membrane Lifespan, 10K Gallons](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [AQUA CREST 5 Micron 10x4.5" Sediment and Carbon Water Filter for GE® FXHTC \| Replacement for GXWH40L, GXWH35F, GNWH38S, Culligan® RFC-BBSA, WRC25HD, PP10BB-CC, Pentek RFC-BB, 3 Pack](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [ICEPURE 5 Micron 20" x 4.5" Whole House Sediment and Carbon Filter,3PACK \| Replacement for AP810-2, SP-DD-5005-20BB, DGD-5005-20, FPMB5-20, P5-20BB, FP25B, SDG-45-2005, CMMF0520-45W1,PP20BB-CC](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [ICEPURE 1 Micron 2.5" x 10" CTO Carbon Whole House Water Filter 4 Pack \| Replacement for any 10" x 2.5" Cartridge, DuPont WFPFC8002, WFPFC9001, SCWH-5, FXWTC FXWSC WHEF-WHWC WHCF-WHWC CBC-10 RO Unit](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [PUREPLUS 5 Micron 10"x4.5" Whole House Carbon Water Filter, CTO10BB, 3 Pack \| NSF/ANSI 42 Coconut Shell Activated Carbon, Reduces Chlorine, Taste, Odor, Fits WFHDC8001, CB-BB-10, FXHTC, GXWH40L](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [Membrane Solutions 5 Micron 10" x 2.5" CTO Carbon Block Water Filter \| Whole House Water Filter Cartridge Replacement Compatible with WFPFC8002, WFPFC9001, FXWTC, WHKF-WHWC, 6-Pack](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [PUREPLUS 5 Micron 2.5" x 10" Whole House CTO Carbon Water Filter,4 PACK \| CTO10 Replacement for Under Sink Water Filter System,Dupont WFPFC8002,WFPFC9001,FXWTC,SCWH-5,WHEF-WHWC,WHCF-WHWC,AMZN-SCWH-5](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [SpiroPure SP-C1 10x2.5 5 Micron Sediment Carbon Water Filter C1 D-10A, 24PK](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [5 Micron 10" x 2.5" Sediment Water Filter Cartridge, 6 Pack \| Whole House Water Fil...](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)

## Add-ons

- [PUREPLUS 5 Micron 10"x2.5" Whole House Sediment Water Filter PP10 4 Pack \| Replacement for Culligan P5, Aqua-Pure AP110, Dupont WFPFC5002, CFS10, WHKF-G05, fits any standard 10 inch RO & RV systems](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)
- [PUREPLUS 5 Micron 10"x2.5" Whole House String Wound Sediment Filter 4 Pack \| Design for Well Water, PPW10 Compatible with WFPFC4002, CW-F, CW-MF, WP-5, W50PE, WFPFC3002, SPC-25-1050, FM-50-975, WB-50W](https://best-deals.pro/visit/pureplus-cto10-1-micron-carbon-water-filter-4-pack)

## Images

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 1](https://best-deals.pro/i/A6V0-Y_3wAySwP75UlScCe97xzJ5SfJht7syYMi5xw7xWSaN-atkxNrqRyWABfXCAgugrDIK-N5S-4MGQrElOxnPhPKXTg7NN4DMZWsKnufEuNHCTrC7SvYa.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 2](https://best-deals.pro/i/BhrzBPpiKncBPMyDvsjQeEBd9xN_3V2zJXUZa469f7juGhkNGFuhtbz5KNGdAE4jH_h4Hvha6_83gl9D1nevTSybcFYC3HQWmChi_yE4uq4bp2OkvyDMP5xe.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 3](https://best-deals.pro/i/CpXuvzLmiP91ffYAgAfGAqj7M_HxAcMJ1gOrMAxKi2KxzPGCXn_D0Y0JtLUr3rwfJ54DOOa5IzzbnfJ_jh41loCq8YEgxMrJWb7IxiVeh6TXx1L5CQiYFJQP.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 4](https://best-deals.pro/i/n13C_ft67DlSsHfmBzZEYMDrpEgwYxzn0zNCLJ571NLM97XkyNHAQZFlwAJBZK4D0AF9G3NjV11ir-i18LBFBIf29tyAiqY-d9AX1cvSATbRfZH2Ht-FC4cG.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 5](https://best-deals.pro/i/WpkB_3qF6AXL3xRJS-10iuYiARGWvBOtgTrue73EWjlyUpVzBUiDByYnOBitCNb3WmSkmyB14P2pwlHjtYd5L_5_j0qeFYPc19MSyR9mvDjh0rUVHOYwPJD1.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 6](https://best-deals.pro/i/38PNy5LFzgCbsPzesrktOeZkEh2yG0ggeBS2QzMb5uv9L167L6lhlkA_9Ksvo4rK20xQsqxXEunddRdB8J3t6IzfDUgoFcnHRb2zig2515X1xYE_gxErkyVy.jpg)

![PUREPLUS CTO10 1-Micron Carbon Water Filter, 2.5 × 10 in, 4-Pack — 7](https://best-deals.pro/i/59Pwl3L10cxcUZ99DSGCIxR63Pqumn5cgdGB5n2US7tP7vJtTSNPoBK-lNyWdGTYKyOVpvDsf4nGtrKPv9_LF41EF3Atss3yNboDLqvZy0ecH62O_Z_0OuRN.jpg)