CrystalClear® Nature's Choice™ Barley Straw Pellets Tabs/Packs Diffuser on both sizes has

Diffuser on both sizes has recommended air flow rate of 25Lpm - 40Lpm

There are several different configurations available on this page:

Accelerates nutrient uptake and sludge digestion

CrystalClear® Polish AC™ is bituminous coal that has been exposed to extreme heat which activates the carbon giving it powerful absorbing powers

4 algaecide and Microbe-Lift® PL liquid water clarifier together for a powerful

CrystalClear® Nature's Choice™ Barley Straw Pellets Tabs/Packs Diffuser on both sizes hasCrystalClear Nature's Choice Barley Straw Pellets utilize barley degradation technology to help manage ponds all year long. When placed in an area of steady water flow Nature's Choice will slowly degrade and emit a natural chemical that cleans and polishes pond water naturally. Includes one mesh bag. Cleans & Polishes Pond Water Naturally Fast Acting & Easy to Apply Steady Release for Long Term Clarity Safe for All Aquatic Life Routine Application