Active Aqua 12W Air Pump (400 GPH) - 8 Outlets

With eight independent outlets at 400 GPH total output, this pump delivers approximately 50 GPH per outlet across all eight sites simultaneously — no splitting required for a standard 8-bucket or 8-reservoir setup. Each outlet can also be split further with standard ¼" tees to serve additional air stones, though per-stone output will decrease with each additional split beyond the base eight.

The 12W / 400 GPH model doubles the outlet count and increases total airflow by 67% over the 6W / 240 GPH four-outlet pump — making it the appropriate step up for growers moving from a four-site to an eight-site setup. Both models share the same 45 dB noise rating and multi-level muffler design, so the upgrade in capacity doesn't come with a noise penalty.

The pressure dial adjusts overall pump output rather than per-outlet flow individually. For independent per-line control across all eight outlets, inline gang valves or individual flow control valves on each airline are the recommended approach — these allow precise per-stone adjustment without affecting the other outlets and are widely available in standard ¼" tubing sizes.

Yes — inline check valves on all eight airlines are strongly recommended whenever the pump is positioned at or below the reservoir waterline. A power interruption without check valves can allow nutrient solution to back-siphon through multiple lines simultaneously and into the pump body, causing permanent diaphragm damage. With eight outlets in use, the risk of back-siphon damage is compounded — check valves are an essential part of any multi-outlet aeration installation.

Yes. At 12 watts and 0.1A draw, this pump is built for always-on continuous operation across large active hydroponic systems. The synthetic rubber diaphragm maintains consistent output under sustained use, and the low wattage keeps the contribution to your facility's energy bill minimal even running around the clock across a full production cycle.

If your setup requires field-serviceable diaphragm replacement for long-term commercial use, or if you need to distribute very high airflow across a large centralized reservoir rather than discrete individual sites, the Active Aqua Dual Diaphragm Air Pump is the better fit. The 12W / 400 GPH model is purpose-matched for eight-site discrete aeration — for continuous-duty commercial operations where uptime and serviceability are priorities, the dual diaphragm design's replaceable components offer a meaningful long-term advantage.

All eight outlets accept standard ¼" (0.25") airline tubing — Active Aqua's compatible tubing is item HGTB25, available separately. Standard ¼" air stones, tees, check valves, and gang valves connect directly to all eight outlets without adapters, making this pump fully compatible with the complete range of commonly available hydroponic aeration accessories.