Propane: 20lbs for $13.75 or $2.95 by the Gallon

Hydroponic Plant Humidity Dome, Fits 10 x 20-In. Trays, 2-In.

HYDROFARM

2", humidity heavy duty plastic dome, with 10" x 20" trays, will help retain moisture & heat to improve seedling germination, includes 3 vents to help control heat & humidity, for use with 10" x 20" trays, not included.