Self-sinking Diffuser AD-9

Product Highlights: High efficiency -- fine bubble diffuser with low back pressure Precise -- contoured diffuser plate designed for the membrane (automatic closes the fine openings when no air flow - no blockage or maintenance needed) Built-in check valve -- the diffuser plate will shut off water back flow Unique -- Advanced self-sinking design (patent pending) High profile base plate -- extruded four corner supports prevent muck coverage onto diffuser Portable -- Top handle for easy carrying and roping tying Compatible -- suited for both fresh and salt water usage Non-corrosion -- Stainless steel base with brass connector Product Includes: One 3/8" hose barb, One air hose clamp, One 9 inch diffuser