Airmax SW20 System, 115V, 200' 3/8" EasySet Airline Aerates Up to 1/4 Acre, Up To 6' Deep 115V, Includes 2 ProAir Diffuser Plates, 200' 3/8" Weighted Airline Aeration Increases Oxygen & Circulation for Improved Water Clarity & Fish Health High Efficiency LR25 SilentAir Linear Diaphragm Compressor, 2.5 Max CFM, 0.6 Running Amps Easy To Install, Approximate Operating Cost/Month $3.48 (24/7) <span class="a-text-bold">PTFE Non-Stick 6&#034; Membrane Diffuser Stick:</span> Provides the synergies of air stones while being virtually maintenance-free. <span class="a-text-bold">Check Valve:</span> Prevents back pressure on the compressor <span class="a-text-bold">Innovative Sled Design:</span> Keeps diffuser submerged while maintaining an upright position during installation. <span class="a-text-bold">High Efficiency Compressor with Rubber Mounts:</span> Reduces noise &amp; vibration to ensure silent operation. <span class="a-text-bold">Air Filter:</span> Maximizes the life of the compressor. <span class="a-text-bold">Airflow Manifold:</span> Simplifies airflow management to individual diffusers. <span class="a-text-bold">Airline Quick Disconnects:</span> For easy system removal &amp; storage. <span class="a-text-bold">Enhanced Cooling System:</span> Tunnels air flow evenly through the cabinet with a high flow cooling fan &amp; high density air intake pre-filter to remove air debris. <span class="a-text-bold">Composite Cabinet with Removal Top:</span> ETL Electrical Safety Certified Cabinet protects components while providing easy access. <span class="a-text-bold">Elevated Base:</span> Protects against damaging flood water. <span class="a-text-bold">Pre-Wired Electrical Box:</span> Simplifies electrical connections for easy setup. <span class="a-text-bold">Self-Weighted:</span> No bricks, weights or ties are needed. This airline is kink-free &amp; fish hook resistant. <span class="a-text-bold">Direct Burial:</span> Use from power source to pond&#039;s edge. Remote Manifold Kits are available for longer runs.