Black Ops Replacement Pre-Filter 12 in x 39 in White Eye Protection Mixed in small batches

Mixed in small batches

purity and the special forms of nitrogen

Improved cap functions as a sample cup and as a stabilizing base to stand the meter upright

Here are just some of the unique and exciting features you won't find elsewhere

With an interchangeable outlet fitting

Black Ops Replacement Pre-Filter 12 in x 39 in White Eye Protection Mixed in small batchesUse 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.