Matala Hakko Self-Weighted Diffuser Discs Atlantic Water Gardens Use it to skim floating

Use it to skim floating aquatic vegetation and algae from the pond surface or remove the float to use on pond bottom

Safe for fish

Included diffuser plates and foam can be used with GFO and other fine filter media

30 foot power cord

Matala Hakko Self-Weighted Diffuser Discs Atlantic Water Gardens Use it to skim floatingMatala Hakko Self Weighted Disc Diffusers are EPDM air diffuser assemblies that feature weighted bases that help keep the diffusers anchored to the bottom and right side up. We recommend the MD 3W up to 7LPM, MD 5W up to 25 LPM, and the MD 7W to 40 liters of air per minute. Produces medium bubbles, reducing back pressure on the pump SKU Membrane Diameter Connection Net Weight MD 3W Silicone 3" 3 16" 0. 47lb MD 5W EPDM 5" 3 8" 2. 36lb MD 7W 7" 3 8" 3.