Two Outlets with Gast Compressor

The Atlantic Water Gardens two-outlet cabinet aeration system provides a commercial-grade Gast diaphragm compressor in a weatherproof outdoor enclosure with two independently controlled air outlet lines. This configuration lets you run two diffusers in different areas of your pond simultaneously, improving oxygen distribution and water circulation throughout a larger water body than a single-outlet system can serve.

Two Zones, Flexible Placement

With two outlets, you can place one deep-water diffuser for destratification and one shallow diffuser near the pond shelf where fish congregate, or run separate diffusers at two ends of a long, narrow pond to create a consistent circulation loop. Each outlet includes an adjustable valve to balance airflow between diffusers. The Gast compressor's continuous-duty rating ensures both outlets receive a steady supply even at maximum output year-round, including through Canadian winter freeze-over.

How to Use

Mount the cabinet above the waterline in a protected location. Run 3/8-inch weighted airline tubing from each outlet to your diffuser positions. Use the adjustable valves to balance airflow between zones. For ponds over 1 metre (3 feet) deep, position at least one diffuser on the pond floor. Connect to a GFCI-protected outdoor outlet. Inspect filter and diaphragm annually.

Ideal for medium Canadian koi ponds and water gardens requiring two-zone aeration coverage.