Windowsill Heat Mat 7.3W 120V (3 inch x 20 inch) Canna so you read system pressure

so you read system pressure at a glance

The EC/TDS conversion factor is user selectable as is the temperature compensation coefficient (ß)

Water Pump Grade: 450 gph

Suitable to pump clear water containing particles with diameter up to 0

the flat packets are the better match on figures alone

Windowsill Heat Mat 7.3W 120V (3 inch x 20 inch) Canna so you read system pressureHydrofarm'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