CB9 9 Inch Gravity Filter - Set of two

CB9 Gravity Water Filters - Works with most popular Gravity Fed Water Systems

Looking for a dependable way to get clean drinking water—at home, in your RV, or off-grid? The CB9 Clearbrook Water Filters are a great option. These gravity-fed filters are designed to remove a broad range of contaminants, including chlorine, heavy metals, pesticides, VOCs, and more. They're built to be simple, effective, and long-lasting.

They’re easy to install—just place them in the upper chamber of your Clearbrook, Berkey or other compatible gravity-fed system.

Note: Berkey® is a registered trademark of New Millennium Concepts, Ltd. While Wild Oak Trail is an authorized Berkey dealer, Clearbrook is a separate brand and not affiliated with or endorsed by New Millennium Concepts, Ltd. References to compatibility are for informational purposes only.

Clearbrook has years of experience in the water filtration space—including previous work in OEM manufacturing. The CB9 filters are compatible with popular gravity-fed units. Their design and performance are comparable to other well-known filters on the market.

One thing that makes these filters stand out is their build quality. They're made without any chemicals, glues, or toxic metals—so nothing unwanted leaches into your water. With proper care, they’ll keep working for years. They’re perfect for daily use and just as useful in emergency prep or off-grid living.

Each CB9 Element filters water naturally, using a proprietary formulation that exceeds NSF/ANSI Standard 53 for contaminant reduction. As water passes through, harmful substances are trapped inside the filter media, giving you crisp, clean water every time.

What’s in the box? You’ll get:

• Two 9" Clearbrook CB9 filter elements

• Two washers

• Two wing nuts

• One priming button

Filter life and maintenance

Each CB9 element is rated for up to 3,000 gallons, and when used in pairs, you’ll get around 6,000 gallons of clean water before needing replacements. Plus, they’re re-cleanable—so you can scrub and reuse them several times, which really stretches their value. They also come with a 6-month pro-rated warranty.