Black Ops Replacement Pre-Filter 10 in x 39 in White Low Tide (LT) Grow Trays The Scout Roll-Top Backpack is

The Scout Roll-Top Backpack is a revolutionary design in the world of carbon-lined bags

This is a must-have smaller carry bag

The Max-Fan™ is more powerful and efficient fan that takes less energy to run

This unique formulation of highly purified minerals and natural additives combines the benefits of both organic and soilless gardening methods

Black Ops Replacement Pre-Filter 10 in x 39 in White Low Tide (LT) Grow Trays The Scout Roll-Top Backpack isUse these for a pre filter on you Black OpsNutrients Carbon Filters. Match the pre filter to your Black OpsNutrients Carbon Filter size. Helps to extend the life of your Black OpsNutrients Carbon Filter by keeping dust and other particles out. The white pre filters give a bright, clean appearance.