iPower GLHTMTCTRLV2HTMTSX2 2-Pack 40-108 Degrees Fahrenheit Digital Heat Mat Thermostat Controller and 10 x 20.5 Seeding Warm Hydroponic Pad, Black LED Lights may take up to two

may take up to two weeks before it ships

The #4 is the largest perlite on the market and averages a whopping size of around 1 inch

Includes: 2-stage 20 in Filter Unit

Setting are easily programmed with the knob that doubles as a button to change settings

iPower GLHTMTCTRLV2HTMTSX2 2-Pack 40-108 Degrees Fahrenheit Digital Heat Mat Thermostat Controller and 10 x 20.5 Seeding Warm Hydroponic Pad, Black LED Lights may take up to two1. Offers more uniform heating and the durability to withstand rugged greenhouse environments. 2. Gently warms root area to improve germination. Increases success of seedlings and cuttings. 3. Warms root area 10 20? F over ambient temperature to improve germination. 4. Provides constant temperature to improve vegetable, plant, herb, and flower seed germination. 5. Waterproof design allows for you to scrub and easier cleaning. 6. Durable, internal