The Cost-Efficient, Eco-Friendly Water Filtration Material
Leaders in the Water Filtration Industry
Nutshell filtration is the next generation of technology, and Eco-Shell is at the helm. Our walnut shells are used in filtration systems to remove oil and heavy metals, as well as suspended solids from a variety of oilfield, chemical plant, and refinery water streams. Our in-house raw material stock guarantees a consistent, high-quality supply without interruption.
We custom-produce and tailor sizing for all water filtration needs
Fits Your Process
We will work with you to supply sample product for research and development
Our walnut shells are not chemically processed, have no heavy metals, and are asbestos-free
Get a Free Sample Kit
For a free sample kit of our in-stock walnut shell, just submit your info below.Get My Kit
How Walnut Shells Improve Your Formulation
Annually renewable, your walnut shell applications are protected from supply chain bottlenecks
Durable and Highly Efficient
Walnut shells have extended durability and can remove oils, heavy metals, and solids with up to 99% efficiency
The stable chemical properties of walnut shells make them one of the most efficient cost-saving media in use
Learn the answers to some of the most common questions we receive about using walnut shells for a variety of industries.
We grow and process English walnut shells at our local California farms.
Yes, we have years of experience shipping globally. Contact us for more information.
All our shells come from local California farms and are grown to meet the highest standard in the country.
Our In-Stock Filtration Size Options
Our sizes are based on U.S sieve standards. Millimeter and inch measurements are approximate. 12/16 and 12/18 are available but not pictured. Custom sizes are available upon request.
12/200.85 mm – 1.70 mm
0.0331 in – 0.0661 in
14/301.40 mm – 0.66 mm
0.0234 in – 0.0555 in
18/400.425 mm – 1.00 mm
0.0165 in – 0.0394 in
20/400.425 mm – 0.85 mm
0.0165 in – 0.0331 in