Matala Hakko Air Diffusers with Included Base Diffuser Type:MDB11-12 with Riser (Small Base / One 12" Diffuser) Matures pond water chemistry and

Matures pond water chemistry and buffers pH

potable water reservoirs

Use Microbe-Lift® Algaway 5

Reduces noxious odors

Two Kinds of Filter Media

Matala Hakko Air Diffusers with Included Base Diffuser Type:MDB11-12 with Riser (Small Base / One 12" Diffuser) Matures pond water chemistry andMatala Hakko Base Air Diffusers are membrane air diffuser assemblies that feature heavy duty plastic bases with soft edges. These bases are hollow so that they can be filled with sand or gravel, eliminating the need for bricks and straps to get the diffuser to sink. Two sizes of bases are offered: the small base can accommodate one or two diffusers, and the large base can accommodate two or four diffusers. Heavy duty diffusers produce medium bubbles,