Growers Supply Company GSHML 20-3/4-by-48-Inch Large Seedling Heat Mat (Discontinued by Manufacturer)

  • List Price: $99.99
  • Sale Price: $99.00
  • Amount Saved: $0.99
  • Availability: Usually ships in 1-2 business days



  • 20-3/4-Inch by 48-Inch
  • Warms root area 10-20-degree F over ambient temperature to improve germination
  • Increases the success of seedlings and cuttings
  • Waterproof construction
  • Place a combination of different trays or pots on the mat

Product Detail

  • Product Dimensions: 48 x 20.75 x 0.25 inches; 2.95 pounds
  • Shipping Weight: 2.95 pounds
  • ASIN: B002LVU4YI
  • Item model number: GSHML
  • Average Customer Review: Customer Reviews

Product Description

This seedling heat mat is 20-3/4-inch by 48-inch (Model # GSHML) is designed to fit under four of our Perma-Nest 22-inch by 11-inch plant trays (GW2211, GT2211, GS2211) or four standard seed flats. Warms the soil in the tray 10-20 degrees Fahrenheit above the room temperature, helping seeds to germinate and grow faster.

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