Give your plants room to reach for the light. As your plants grow taller, the Canopy Riser adds 10.5 inches of vertical clearance between your tower modules — keeping leaves separated, airflow open, and every plant getting the light it needs to thrive. Without a riser, taller plants in your tower will begin to overlap, shading the growth beneath them and slowing down yields. One Canopy Riser stacks seamlessly between any two standard Hydro & Co. modules, so you can adapt your tower as your garden grows — no tools, no fuss. Height: 10.5 inches Compatible with: All Hydro & Co. 3-Pod and 4-Pod Modules Material: PTEG — food-safe, durable, recyclable Tool-free assembly — snaps directly onto your existing tower Add one when you first notice your canopy tightening up, or get ahead of it with your initial build for larger, faster-growing plants like basil, mint, or kale. This also applies to leafy greens (lettuce etc.)