Evolution Aqua Duo Pack: Pure Pond Bomb and Pure Sludge Bomb PUREPBSLDUO Bulk Mechanical stage: Water flows through

Mechanical stage: Water flows through debris screen

Optional bottom screen available for all sizes (mid-2009 models and newer)

Designed for underground applications Direct Burial Airline has a rigid wall making it highly resistant to deforming and crushing

To treat ichthyophthiriasis ("ich") of freshwater fishes and cryptocaryonaisis ("marine ich") or marine fishes

Evolution Aqua Duo Pack: Pure Pond Bomb and Pure Sludge Bomb PUREPBSLDUO Bulk Mechanical stage: Water flows throughShips Free! Includes (1) Pure Pond Bomb and (1) Pure Sludge Bomb! The Evolution Aqua Pure Pond Bomb is a fast acting, concentrated form of Pure Pond, Evolution Aqua's award winning bacterial product. It is ideal for use in Koi ponds, ornamental ponds, self contained water features, or ponds without conventional filtration. The Pure Pond Bomb is a unique combination of beneficial bacteria and enzymes that quickly clean up organic waste and break down