Ebb and Flow Trays are manufactured of sturdy vacuum-formed polystyrene with UV inhibitor for decades of dependable use. Our Ebb & Flow Trays can be used as replacement trays for greenhouse Ebb and Flow Benches or used to retrofit or convert any standard greenhouse grow table into a modern sub-irrigation system so long as the table is completely level and has crossbar supports for every 18” or less. Greenhouse table systems longer than 60 feet will require two or more sections of Ebb and Flow Trays. An Ebb and Flow Tray (also known as a Flood and Drain Tray) is an economical way to conserve water. Whether using the Ebb and Flow trays in a true Ebb and Flow Table System or as a catch basin for a drip irrigation system to collect runoff for drainage and humidity control, our standard width Ebb and Flow Trays are easily inserted into your current grow table. The Flood and Drain Tray typically holds about ½ gallon of water per square foot and can be filled with a maximum water depth of 1”.
For detailed dimensions, please reference the 'Product Files" tab to review the product specification sheet. The sides of all ebb & flow trays are slightly flexible and can bend about 1/4". Each corner has a gentle built-in indentation to clear any fasteners at the corners of grow tables. Try our plant-based, biodegradable Ebb-N-Flow Table/Tray Cleaner
to remove dirt, grime, mold, and algae.
MAD Greenhouse Products stocks standard width Ebb and Flow Trays that will fit most stationary and rolling benches. A short lead time will be required for custom width trays.