Great LakesŪ 6-Diffuser ManifoldUsually recommended in 8' to 40' of water and requires 3–7 cfm. S1 underlay (included) prevents sediment erosion and suspension. Outlet 1/2" male barb fitting and 6 ALR23M Sweetwater® diffusers also included. Note: Diffusers are also known as airstones. |
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