Shield N Seal 15″ x 20″ Black and Clear Vacuum Seal Bags With Zipper SNS 3500 Air Pumps Hydro Crunch Expanded Clay Pebbles

Hydro Crunch Expanded Clay Pebbles are made with only the highest quality clay

Ready to use and use to work with

Removable back panel makes controller easy to wire into your power system

Drip Clean is used with each feeding throughout the grow cycle

Shield N Seal 15″ x 20″ Black and Clear Vacuum Seal Bags With Zipper SNS 3500 Air Pumps Hydro Crunch Expanded Clay PebblesBox Contents: 50 Black and Clear Vacuum Seal Bags Size: 15 x 20 Material: Super Thick Food Grade, BPA Free Black and Clear Plastic Zipper Feature: Seal Again and Again Wholesale: 1 case contains 8 boxes Our engineers have worked tirelessly to develop the thickest and strongest vacuum seal bags. They designed this model with a resealable zipper that will allow you to reuse the bag over and over. This makes the sealer bag more environmentally friendly