9-Inch Double-Disc Rubber Membrane Diffuser with Self-Sinking Base |

 High-Performance Pond Aerator Diffuser

Maximize the performance of your pond aeration system with the Outdoor Water Solutions 9-Inch Double-Disc Rubber Membrane Diffuser with Self-Sinking Base. Designed for superior bottom-diffused aeration, this high-capacity diffuser features dual 9-inch self-cleaning EPDM rubber membrane discs that produce thousands of fine air bubbles for exceptional oxygen transfer and complete water circulation.

Unlike traditional air stone diffusers that can clog and lose efficiency over time, the flexible EPDM rubber membranes automatically flex during operation to resist mineral buildup and debris. This self-cleaning design helps maintain consistent airflow while reducing maintenance and extending the life of your aeration system.

The integrated self-sinking weighted base makes installation fast and effortless. Simply connect the weighted airline, place the diffuser on the pond bottom, and begin aerating—no additional anchors, gravel, or ballast are required.

Engineered with heavy-duty, corrosion-resistant materials, the Double-Disc Diffuser is built to withstand demanding outdoor conditions and provide years of dependable performance. Its larger diffuser surface area delivers increased oxygen transfer, making it ideal for larger ponds, deeper water, and high-output pond aeration systems.

By increasing dissolved oxygen and circulating the entire water column, this diffuser helps reduce algae growth, eliminate stagnant water, minimize organic muck buildup, improve water clarity, and create healthier conditions for fish and beneficial bacteria.

Features & Benefits

• Dual 9-inch self-cleaning EPDM rubber membrane discs
• Produces fine air bubbles for maximum oxygen transfer and water circulation
• Self-cleaning design resists clogging and minimizes maintenance
• Integrated self-sinking weighted base for fast, hassle-free installation
• No additional anchors or ballast required
• Heavy-duty, corrosion-resistant construction for long-lasting durability
• Improves dissolved oxygen and overall pond water quality
• Helps reduce algae growth, odors, stagnant water, and organic sludge buildup
• Supports healthier fish and a balanced aquatic ecosystem
• Ideal for residential ponds, farm ponds, recreational lakes, golf course ponds, and commercial water features

Whether you're upgrading an existing aeration system or installing a new one, the Outdoor Water Solutions 9-Inch Double-Disc Rubber Membrane Diffuser delivers professional-grade performance, low-maintenance operation, and reliable oxygenation to keep your pond cleaner, clearer, and healthier year-round.

Diffusers

• Dual Disc 9" Rubber Membrane Diffusers with Self Sinking Base - 3/8", 1/2" & 5/8"