G-Tools Grow Rack for Ebb & Flow Trays2 × 1 m (Two-Tray Vertical Farming Rack)

This G-Tools grow rack is purpose-built for vertical ebb and flow cultivation at a commercial or serious hobbyist scale. It suits growers running microgreens, herbs, or leafy crops who want to multiply their yield per square metre of floor space.

The rack accepts two 2 × 1 m ebb and flow trays, one per tier. Each tray receives a timed flood of nutrient solution pumped up from the 150-litre tank stored beneath the lowest tier. When the pump cycle ends, water drains back down by gravity - no sump pump required. That self-contained loop keeps water use tight and eliminates the need for a separate drain point in your growing space.

Vertical growing makes the most of your room height rather than your floor area. Each additional tier you bolt on doubles the productive canopy without increasing the rack's footprint. G-Tools supply a complete irrigation kit rated for up to three tiers from a single reservoir, so scaling from two tiers to three is straightforward - buy the extra tier frame, connect the additional feed line, and you are running.

Lighting is critical at close canopy distances. G-Tools recommend the Sanlight Flex II 20 W bar for this rack. Running six bars delivers a usable PPFD across the tray surface; eight bars increases intensity for faster-growing crops; ten bars pushes output further for high-demand cultivars. Sanlight Flex II units are slim enough to mount between tiers without reducing clearance, and their low heat output keeps temperatures stable in a stacked configuration.

If you need to move the rack between rooms or reposition it for cleaning, request the castor wheel option at point of order. The wheels lock to hold the rack steady during flood cycles. Pair the rack with G-Tools ebb and flow trays, the matching irrigation kit, and your chosen number of Sanlight Flex II 20 W bars for a ready-to-run vertical system from day one.

Grower’s Note: In a stacked ebb and flow system, even flood duration is essential - upper tiers tend to drain faster than lower ones. Check that your timer gives each tray enough contact time with the nutrient solution before the pump cuts off. Start with shorter flood intervals and extend gradually, monitoring root-zone moisture rather than guessing by timer alone. Keep your reservoir topped up: a 150-litre tank can drop significantly across several daily flood cycles, and concentrated nutrient solution will stress young microgreens quickly.

Priced at £721, with free UK delivery.