Excellent quality 7 in tall humidity dome with straight sides allows use of all plant sites in the propagation tray. The dome has two clear vents that can be opened or closed to control humidity and a built-in handle for easy removal. Fits snugly on standard 10in x 20in propagation tray.
The BEST of the BEST Tray ever made ! These reusable trays are built tough for long lasting durability! They are injection molded, where as most 10in x 20in trays are vacuum formed. They are four times the thickness of regular other brand trays. No need to use multiple trays to gain strength when one quad thick tray will do the trick. The tray has no Hole.
Warms root area approximately 10–20° F over ambient temperature to improve germination process. Helps gardeners have better success rates with seedlings and cuttings. Perfect for one standard 10 in x 20 in propagation tray. Heavy-duty construction makes this mat very durable. More than 20% larger than competitive mats. This allows even warming of your entire tray. More consistent heating with fewer hot spots than other seedling heat mats. Ed Hume seal of approval. 20 W.