Black Ops Replacement Pre-Filter 12 in x 39 in White Lighting Accessories Lighting Highly efficient and accurate due

Highly efficient and accurate due to its advanced microprocessor technology

We offer a variety of sizes and configurations for all your ducting and HVAC needs

The Aluminum Shut-Off offers durability and full-flow in a lightweight package

spout and hydroponic systems Industry Approvals: UL Listed

a 6 ft stainless steel wet probe that measures water

Black Ops Replacement Pre-Filter 12 in x 39 in White Lighting Accessories Lighting Highly efficient and accurate dueUse 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.