Multi-vented Humidity Dome 2"

Food grade -- Made from virgin, food-grade BPA-free clear plastic to allows you to easily observe the plants

Sturdy and durable -- Heavy-duty plastic construction will endure through many growing cycles

Full humidity control-The two large top vents are adjustable and give you total control of the humidity levels

Compatible -- These domes have standard dimensions and are compatible with all standard 10" x 20" trays and heat mats