Hydrofarm Black & White Grow Bag 5 gal (16 packs of 25) Monterey Lawn & Garden Products Contains three dual-ball bearing fans

Contains three dual-ball bearing fans with PWM-controlled motors to minimize noise

unstable growing media (like rockwool)

and more enjoyable drinking experience for your furry friend

Antiscalant injection to for extreme membrane longevity

and may be subject to human errors

Hydrofarm Black & White Grow Bag 5 gal (16 packs of 25) Monterey Lawn & Garden Products Contains three dual-ball bearing fansDescription 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