Windowsill Heat Mat 7.3W 120V (3 inch x 20 inch) Air Not steam sterilized

Not steam sterilized

High dirt-holding capacity: Wide pleated media traps more sediment between changes

making 640 gallons of ready-to-use solution

allowing for precise control over your watering system

Windowsill Heat Mat 7.3W 120V (3 inch x 20 inch) Air Not steam sterilizedHydrofarm's windowsill heat mat is perfect for veteran growers, beginners, and children too. It is the perfect size for small growing spaces, and improves germination by warming the root area 10 20 F over ambient temperature. By warming the roots you increase your growing success as this mat will maintain a controlled temperature all season long. 3" x 20" UL listed Power cord included