Matala Expandable gravity filter maximizes Matala® filter media performance. The rugged Biosteps 10 contains an amazing 200 sq. ft. of surface area for beneficial bacteria growth.

Combined with a cross flow design that traps and processes more debris at high flow rates, you get unparalleled mechanical and biological filtration for superior water quality.

Combine multiple units for large or heavily stocked koi ponds, or use Biosteps 10 with optional UV Clarifier for improved water clarity.

Universal barbed inlet (1", 1-1/4", 1-1/2"), 1-1/2" outlet.

Measures 23-3/16" x 15" x 20-3/16" high.

Features of BioSteps 10 Filter:

• State of Art Progressive Filtration
• Supplied with sufficient volume of Matala® filter media with progressive densities.
• Filter design enhances growth of different ecological communities of bacteria and planktonic organisms that will colonies different sections of the filter. 
• Cross-Flow Pattern: Traps more dirt at high flow rates without plugging. 
• Flow rate up to 1060 gph maximum per unit. 
• Built-In overflow safety. 
• Easy maintenance. 
• Sloped bottom with extra sink at outlet for easy draining of waste.
• Modular design allows for future expansion.
• Rugged construction

For ponds up to 10,000 liter / 2,700 gallon, step-wise transition from mechanical filtration to high-efficiency bio filtration.  

*Recommended flow rate for optimum UV performance.

Please Note:  The above chart states "Water Garden Pond Size"  and "Koi Pond Size."  "Water Garden Pond Size" refers to a pond that is not stocked with fish; whereas "Koi Pond Size" refers to a pond that is stocked with fish.

The BioSteps 10 is also available with a waterfall discharge!