Black Ops Replacement Pre-Filter 12 in x 48 in White Hurricane Works as a specialized nutrient

Works as a specialized nutrient for rapidly growing plants during the structural and foliar growth phase

The Vendor Classic is lightweight and made with a thick carbon liner to keep your items are safe

including Calcium and Magnesium

Top ring diameter is 22 in

light-proof

Black Ops Replacement Pre-Filter 12 in x 48 in White Hurricane Works as a specialized nutrientUse 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.