Aqua Ultraviolet® Ultima II Filters with 1.5" Inlet/Outlet Low Head Add 1 cup for each

Add 1 cup for each 960 gallons

Measuring cups and dosing guide make application easy

Eliminates algae growth in your pond

Minimum dissolved oxygen level required is 2

Patented grass-like fiber structure perfect for beneficial bacteria

Aqua Ultraviolet® Ultima II Filters with 1.5" Inlet/Outlet Low Head Add 1 cup for eachThe 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