Black Ops Replacement Pre-Filter 12 in x 39 in White Lighting Accessories Lighting We offer a variety of

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

If planting in containers outdoors

sulfur and heavy metals - great for city or well water

The Uvonair® CD-1200 ozone generator will treat all odors being exhausted by a 12 in (30 cm) ventilation system under most circumstances

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

Black Ops Replacement Pre-Filter 12 in x 39 in White Lighting Accessories Lighting We offer a variety ofUse 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.