Botanicare Mobile Rack Tray 4 x 4 ft, White ABS | 1.5 in Offset for Vertical Racks

Botanicare Mobile Rack Tray 4 x 4 for Vertical Grow Racks

Stacked growing only works if each level drains cleanly, because standing water under a rack invites algae, gnats and root problems. This tray, part number HGC707364, is built for one 4 x 4 ft level of a vertical or mobile rack. It measures 48.0 x 48.0 in and stands 3.5 in tall. The underside carries a built-in 1.5 in offset, which tilts the floor so runoff flows toward the drain area. On top, the planting surface stays level, so pots, flats and propagation trays sit flat and water evenly. Wide, smooth grooves across the floor guide water to a recessed drain pocket about 3.6 in deep, ready for a hose or fitting. The tray is molded in heavy-duty ABS with a virgin ABS cap, in white to bounce light back into the canopy. It is designed around Spacesaver Wide Span GROW shelving at 48 x 48 in. It also fits other shelving systems with 48 in wide uprights and 1.5 in beam spacing. At about 31 lb, the tray is light enough to lift onto an upper level.

Setting Up a Mobile Grow Rack Level

Install the rack beams first and check each level with a spirit level before placing trays. Set the tray so the drain area sits where the return line or catch hose will run. The offset handles the slope, so the beams themselves should stay level. Plumb a drain fitting or hose from the pocket to a gutter, bucket or return line before the first irrigation. Run a test with clean water and watch that every corner empties toward the drain. On mobile carriages, leave enough slack in the drain hose for the rack to roll without pulling the fitting. Keep plant containers off the drain pocket so runoff reaches it freely. Between crops, clear debris from the grooves and the drain area. Scrub with a peroxide-based cleaner, rinse well, then disinfect before the next planting. The same tray suits propagation shelves, microgreen racks and finishing levels alike. For 96 in beams, Botanicare makes a matching version twice as long.

Key Features

• 1.5 in Offset: A built-in slope under a level planting surface sends runoff to the drain area.
• Fits 48 x 48 in Levels: Made for Spacesaver Wide Span GROW and other racks with 1.5 in beam spacing.
• Recessed Drain Pocket: A drain area about 3.6 in deep collects water for a hose or fitting.
• Wide, Smooth Grooves: Channels across the floor guide water and rinse clean between crops.
• White ABS: Heavy-duty ABS with a virgin ABS cap reflects light back into the canopy.

Technical Specifications