While Hortiblock/Speedling Trays are designed to be used with air circulation space beneath to air prune plant roots, a drain tray is required to capture water when trays are set-up indoors.
- You can also fill the tray with about 1″ of water and float the Hortiblock/Speedling Tray on it for continuous watering.
- Made of dark green plastic, very sturdy
- 31″ x 16″ x 2″ deep










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