Aqua Ultraviolet® Ultima II Filters with 2" Inlet/Outlet Made in USA The result is a polished

The result is a polished

Complete diffuser includes diffuser sled

This airline can be used with Airmax® KoiAir™

as opposed to a lever arm and ball

the discharge point for the air needs to be changed depending on the season: during warm weather

Aqua Ultraviolet® Ultima II Filters with 2" Inlet/Outlet Made in USA The result is a polishedThe Ultima II Filter is the best choice for home hobbyists and aqua professionals alike due to its impressive capacity and minimal, effortless maintenance. Independent laboratory testing confirms that the Ultima II filter is superior to three leading bead filter brands in setup, nitrification, back washing and overall efficiency. It's perfectly designed for high flow rates, extreme fish loads and elevated feed rates. Why Use a Biomechanical Filter? To