Hydrofarm Black & White Grow Bag 7 gal (16 packs of 25) odor-control Independent proportional settings for pH

Independent proportional settings for pH and TDS can be adjusted from 0 to 90 seconds

The 40 series features just 4 small square pots

Water travels through 7 stages of filtration : First

Working Humidity: ≤90%

Power Output: 10W ± 1W (Low 5V voltage)

Hydrofarm Black & White Grow Bag 7 gal (16 packs of 25) odor-control Independent proportional settings for pHDescription Product Details: White Black Grow Bags This update to the classic Hydrofarm grow bags features a new durable white plastic outer layer so you can write details like plant type, planting dates and growing notes, right on the bag! The white surface also reflects light, helping keep plants' roots cooler. These bags are a great low cost alternative to plastic pots used by greenhouse growers. And as always, they're made from a specially