Active Aqua 2.0 Low Rise Tray - 4' x 4' Black

Outer Dimension (OD) refers to the outermost tray edge measurements — 48" × 48" for this tray — which is what you need for bench clearance and fit calculations. Inner Dimension (ID) refers to the internal rim measurements — 44" × 44" — which is the actual usable growing surface for pot layout and spacing. Always use OD when checking bench compatibility and ID when planning your canopy configuration.

Yes. The Low Rise Tray is specifically designed for both top feed drip and ebb and flow irrigation systems. The 4" wall height provides adequate flood depth for ebb and flow cycles, and the customizable drain location lets you position the outlet to match your existing plumbing rather than modifying your system to accommodate a fixed drain point.

The tray includes pre-marked drain knock-out points that can be opened at your preferred location. Select the position that aligns with your bench plumbing layout, open the knock-out using a drill or hole saw to the appropriate drain fitting diameter, and install your drain fitting. Full drain installation guidance is available from Active Aqua support if needed.

The 4' × 4' is the square option in the lineup — suited for single-plant high-yield setups, SOG configurations, or any installation where a square canopy footprint is more practical than a long rectangular run. It's also the right choice when bench space only accommodates a 4' × 4' footprint, or when a grower wants to run two square trays side by side on a standard 4' x 8' rolling bench system for independent zone control rather than one continuous surface.

The 4" wall height accommodates standard pot sizes up to approximately 3–4" tall sitting on the tray floor, with enough clearance for root zone containment and irrigation flood depth. The tray is compatible with all growing styles including soil, coco coir, rockwool, and hydroponic media — the HIPS material is chemically inert and won't react with nutrient solutions from your Active Aqua 2.0 reservoir, pH-adjusted water, or standard growing substrates.

Flush with water to remove loose debris, then apply a diluted hydrogen peroxide or enzymatic cleaner and scrub with a soft brush to remove salt deposits and biofilm from the floor pattern and walls. The easy clean internal pattern is designed to prevent residue from accumulating in hard-to-reach areas, and the smooth HIPS surface releases most buildup with minimal scrubbing. Rinse thoroughly before returning to service.