---
product_id: 333825555
title: "OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10\" x 2.5\", 0.5 Micron"
brand: "omnifilter"
price: "$73.92"
currency: USD
in_stock: true
reviews_count: 5
category: "Omni Filter"
url: https://www.desertcart.us/products/333825555-omnifilter-pentair-cb1-carbon-water-filter-10-inch-under-sink
store_origin: US
region: United States of America
---

# 0.5 Micron ultra-fine filtration Fits all 10" standard housings NSF certified for safety & quality OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron

**Brand:** omnifilter
**Price:** $73.92
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your tap water game—because your health deserves the best!

## Quick Answers

- **What is this?** OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron by omnifilter
- **How much does it cost?** $73.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/333825555-omnifilter-pentair-cb1-carbon-water-filter-10-inch-under-sink)

## Best For

- omnifilter enthusiasts

## Why This Product

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

## Key Features

- • **Crystal-Clear Hydration:** Eliminates chlorine, rust, and sediment for pure, great-tasting water every time.
- • **Universal Compatibility:** Seamlessly fits any 10" x 2.5" standard filter housing—upgrade without hassle.
- • **Advanced Microfiltration:** Captures contaminants down to 0.5 microns, including Giardia and Cryptosporidium cysts.
- • **Long-Lasting Performance:** 400-gallon capacity with a recommended 6-month replacement cycle keeps your water fresh and clean.
- • **Trusted Safety Certification:** NSF International tested and certified, ensuring peace of mind with every sip.

## Overview

The OMNIFilter Pentair CB1 is a 10-inch under-sink carbon block replacement cartridge designed to fit all standard 10" x 2.5" housings. Featuring granular activated carbon block technology, it filters down to 0.5 microns, effectively reducing chlorine, sediment, rust, and harmful cysts like Giardia. NSF certified and boasting a 400-gallon capacity, it ensures safe, great-tasting water with easy installation and reliable performance for up to six months.

## Description

OMNIFilter CB1 cartridges are highly effective at reducing unwanted bad taste & odor, chlorine taste & odor and other contaminants. CB1 cartridges are an ideal choice for a wide range of applications. They also make excellent polishing filters or pre-filters in applications requiring fine filtration and high capacity.

Review: Great fit! - Excellent item. Easy install. Same as the one I had in before.
Review: This filter removed the sulfur taste from my well water. - This was a perfect fit for my filer housing. I just want to say we have well water with a strong sulfur taste and this filter it removes the sulfur taste very well. I would definitely buy again.

## Features

- HIGHLY EFFECTIVE AT REMOVING unwanted bad taste & odor and other contaminants to give you great tasting, safe water right from the tap
- FITS ALL 10" Standard Housing and can replace any 10" x 2.5" carbon filter
- REDUCES fine Sediment, Rust particles, Chlorine Taste & Odor, Giardia and Cryptosporidium Cysts down to 0.5 Micron
- NSF INTERNATIONAL tested and certified for your peace of mind
- 400 GALLON CAPACITY. Replace every 6 months or when you notice a drop in water pressure or water quality

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00099YTY0 |
| Brand | OMNIFilter |
| Brand Name | OMNIFilter |
| Customer Reviews | 4.1 out of 5 stars 99 Reviews |
| External Testing Certification | NSF |
| External testing certification | NSF |
| Global Trade Identification Number | 00047087300241 |
| Included Components | Carbon-Water Filter |
| Item Dimensions D x W x H | 6.4D x 6.4W x 25.4H centimeters |
| Item Type Name | 10-Inch, Under Sink Carb0n Block Replacement Cartridge, 10" x 2.5", 0.5 Micron |
| Item Weight | 454 g |
| Item weight | 454 g |
| Manufacturer | Pentair |
| Manufacturer Part Number | CB1-SS4-S06 |
| Material | Granular Activated Carbon Block |
| Material Type | Granular Activated Carbon Block |
| Model Number | CB1 |
| Number of Items | 1 |
| Product Benefits | Reduces Chlorine |
| Product benefits | Reduces Chlorine |
| Product dimensions | 6.4D x 6.4W x 25.4H centimeters |
| Set Name | 10-inch Standard Size |
| UPC | 047087300241 732454730676 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Granular Activated Carbon Block
- **Product Dimensions:** 2.5"D x 2.5"W x 10"H
- **Item Weight:** 16 ounces
- **External Testing Certification:** NSF
- **Product Benefits:** Reduces Chlorine, Reduces Sediment

## Images

![OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron - Image 1](https://m.media-amazon.com/images/I/61vJAg07iOL.jpg)
![OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron - Image 2](https://m.media-amazon.com/images/I/813KLaSQWdL.jpg)
![OMNIFilter Pentair CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 10" x 2.5", 0.5 Micron - Image 3](https://m.media-amazon.com/images/I/61v+Xvp6bRL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great fit!
*by T***E on 15 September 2023*

Excellent item. Easy install. Same as the one I had in before.

### ⭐⭐⭐⭐⭐ This filter removed the sulfur taste from my well water.
*by G***N on 16 July 2026*

This was a perfect fit for my filer housing. I just want to say we have well water with a strong sulfur taste and this filter it removes the sulfur taste very well. I would definitely buy again.

### ⭐⭐⭐⭐ Good quality, easy flush.
*by R***N on 5 August 2012*

What can you say. It does the job and easy easy to flush. I have all water in the kitchen going through a gang of these. Seems like it filters well. Ice isn't extremely clear, but that could be other factors causing it. No smell, tastes great, happy with them. I buy a case at a time.

## Frequently Bought Together

- Pentair OMNIFilter CB1 Carbon Water Filter, 10-Inch, Under Sink Carbon Block Replacement Cartridge, 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
- Pentair OMNIFilter TO1 Carbon Water Filter, 10-Inch, Standard Whole House Carbon Wrap Sediment and Taste & Odor Replacement Filter Cartridge, 10" x 2.5", 5 Micron, Pack of 2

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/333825555-omnifilter-pentair-cb1-carbon-water-filter-10-inch-under-sink](https://www.desertcart.us/products/333825555-omnifilter-pentair-cb1-carbon-water-filter-10-inch-under-sink)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-17*