Airmax KoiAir Single Stick Diffuser Plate Assembly – 520401 The Airmax KoiAir Single Stick Diffuser Plate Assembly is a complete replacement diffuser designed to provide efficient, reliable aeration for ponds and water gardens. The assembly features a durable PTFE membrane diffuser stick mounted to a heavy-duty base plate. The plate helps keep the diffuser positioned flat on the pond bottom while reducing disturbance of bottom sediment as air is released. Unlike traditional air stones, the flexible membrane diffuser is designed to resist clogging, cracking and leaking while producing fine bubbles for effective oxygen transfer and water circulation. Features: Complete single-stick diffuser plate assembly Airmax Part #: 520401 UPC: 813166020146 Includes 1 PTFE membrane diffuser stick Diffuser size: 7" L x 1.5" diameter Plate size: approximately 10" x 3" Includes 3/8" barbed hose adapter Connects to standard 3/8" aeration airline Heavy-duty base helps keep the diffuser positioned on the pond bottom Fine-bubble membrane provides efficient pond aeration Low-maintenance design resists clogging Replacement diffuser plate for Airmax KoiAir Mini aeration systems Airmax specifically lists 520401 as the replacement KoiAir Mini diffuser plate
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