---
product_id: 342856039
title: "OMNIFilter CB3 Carbon Water Filter, 10\" Under Sink Sink Carbon Block Taste & Odor Replacement Filter Cartridge, 10\" x 2.5\", 0.5 Micron"
brand: "pentair"
price: "€ 143.84"
currency: EUR
in_stock: true
reviews_count: 5
url: https://www.desertcart.gr/products/342856039-omnifilter-cb3-carbon-water-filter-10-under-sink-sink-carbon
store_origin: GR
region: Greece
---

# NSF/ANSI certified 0.5 Micron filtration 400 Gallon capacity OMNIFilter CB3 Carbon Water Filter, 10" Under Sink Sink Carbon Block Taste & Odor Replacement Filter Cartridge, 10" x 2.5", 0.5 Micron

**Brand:** pentair
**Price:** € 143.84
**Availability:** ✅ In Stock

## Summary

> 💦 Elevate your hydration game with crystal-clear water!

## Quick Answers

- **What is this?** OMNIFilter CB3 Carbon Water Filter, 10" Under Sink Sink Carbon Block Taste & Odor Replacement Filter Cartridge, 10" x 2.5", 0.5 Micron by pentair
- **How much does it cost?** € 143.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/342856039-omnifilter-cb3-carbon-water-filter-10-under-sink-sink-carbon)

## Best For

- pentair enthusiasts

## Why This Product

- Trusted pentair brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Certified Safety:** NSF/ANSI certified for peace of mind.
- • **Superior Flow Rates:** Enjoy a steady stream of clean water.
- • **Transform Your Water:** Say goodbye to bad taste and odor!
- • **Effortless Compatibility:** Fits various under-sink systems seamlessly.
- • **Long-lasting Performance:** Replace every 6 months for optimal quality.

## Overview

The PentairOMNIFilter CB3 is a high-performance carbon water filter designed for under-sink systems, effectively reducing bad taste, odor, and harmful contaminants. With a 0.5-micron filtration capability and a 400-gallon capacity, this NSF/ANSI certified filter ensures you enjoy cleaner, better-tasting water for up to six months.

## Description

PentairOMNIFilter CB3 Carbon Water Filter, 10" Under Sink Sink Carbon Block Taste & Odor Replacement Filter Cartridge, 10" x 2.5", 0.5 Micron

## Features

- HIGHLY EFFECTIVE at reducing unwanted bad taste & odor, chlorine taste & odor and other contaminants for cleaner, clearer, better-tasting water
- FOR USE IN UNDER SINK drinking water filter systems; Fits OMNIFilter CBF1, CBF3, OT32 and USM2 Under Sink filter housings as well as 10" standard housings of other major brands
- CARBON BLOCK MANUFACTURED USING AN EXTRUSION PROCESS that provides superior flow rates and chemical reduction
- NSF/ANSI 42/53 certified for Lead, Chlorine Taste & Odor, Giardia, Cryptosporidium Cysts and other chemicals
- 400 GALLON CAPACITY. Replace every 6 months or when you notice a drop in water pressure or water quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Omni Corporation |
| Part number | CB3-SS4-S18 |
| Item Weight | 454 g |
| Product Dimensions | 6.35 x 6.35 x 25.4 cm; 453.59 g |
| Item model number | CB3-SS |
| Size | 1 Count (Pack of 1) |
| Color | White |
| Material | Polypropylene |
| Item Package Quantity | 1 |
| Number Of Pieces | 1 |
| Specification met | Not Applicable |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Material:** Carbon block
- **Product Dimensions:** 2.8"D x 2.8"W x 9.8"H
- **Item Weight:** 16 ounces
- **External Testing Certification:** ANSI, NSF
- **Product Benefits:** Reduces Chlorine

## Images

![OMNIFilter CB3 Carbon Water Filter, 10" Under Sink Sink Carbon Block Taste & Odor Replacement Filter Cartridge, 10" x 2.5", 0.5 Micron - Image 1](https://m.media-amazon.com/images/I/61PXr+LY9FL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
    La description complète
  
  

*by D***T on Reviewed in Canada on 13 September 2021*

C’est exactement celui que nous avions besoin, merci

### ⭐⭐⭐⭐⭐ 







  
  
    Omni Filters are fantastic so I'm giving the product a 5 star rating
  

*by Z***X on Reviewed in the United States on 23 February 2015*

BE CAREFUL.  Omni Filters are fantastic so I'm giving the product a 5 star rating.  However, it seems if you have an older canister the new CB3 size is too large for the canister.  I think someone over at Omni needs to re evaluate size codes.  I always keep the labels from filter cartridges because they all have this crazy obsession with constant upgrades and it seems that from year to year the filter you bought is now an orphan product but I digress...  the labels on the two carts are identical...  CB3 carbon block...  but the new item is too wide for the canister.  If you have an older Omni canister check the size before you remove the plastic wrap!

### ⭐⭐⭐⭐⭐ 







  
  
    high level filtration
  

*by T***T on Reviewed in the United States on 15 October 2021*

After I got food poisoning from a contaminated water tank in my RV, I had to rethink my whole filtration strategy. Firstly, I had used it for 2 seasons of camping, and replacing it was way overdue. But it worked fine, do you really need to replace it?I researched and learned a bit more about these filters. Pentair makes various different ones, and among the carbon block filters, there is the CB1 (their basic filter) and the CB3 (a more advanced filter, that removes more impurities.) I bought the CB3, because it removes lead, cysts and viruses.I also learned that these filters do remove germs, but if they are not sanitized, bacteria can grow on them just the same, in which case the filter would actually add more germs and contaminate otherwise clean water. In an RV, sanitizing the water system is critical, and that includes the filter media. Running bleach water through the whole system, including the filters, will sanitize them pretty well, but without that, you might as well fill your filter with motor oil.I also learned how filters change in their efficacy over time. In the beginning, they filter everything, but slowly, filtration deteriorates. After 12 months, you might still be able to filter chrlorine, but you might have already lost the ability to filter germs and viruses. THe solution is to change the filter on the recommended schedule, which for the CB3 is 6 months. I could extend that a bit, say if I didn't use it much, but I would still sanitize the whole system with bleach, which will improve the effectiveness of the filter overall.Lastly, I should NOT expect a filter to remove germs, but rather, I should start by putting clean water into a properly sanitized water system. That is, this filter will improve the taste of water, and will remove some impurities, but I should not expect it to clean-up contaminated water.This filter is recommended.

## Frequently Bought Together

- Pentair OMNIFilter CB3 Carbon Water Filter, 10" Undersink Carbon Block Taste & Odor Replacement Filter Cartridge, NSF Certified to Reduce PFOA/PFOS, 10" x 2.5", 0.5 Micron
- Pentair OMNIFilter RS14 Sediment Water Filter, 10-Inch, Standard Whole House Polypropylene Spun Sediment Replacement Filter Cartridge, 10" x 2.5", 10 Micron, Pack of 2
- Captain O-Ring - K4 Replacement O-Ring Kit for OmniFilter K4, CBF1, CBF3, SFM2, U30, USM2, OT32, RO2000, RO2050, and More (2 Sets, 8 Orings)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-03-12*