Investopedia: Is Clarcor's Business Slipping Away?
Filtration has proven to be a consistently popular business with many
investors and corporations. The appeal makes sense - as performance and
environmental quality demands increase, so does the demand for better
filtration. Filtration also tends to be a business oriented towards
defensible high-margin consumables business. All of that said, Clarcor's (NYSE:CLC) business is not looking so strong right now and it's worth asking why that is.