EssickAir 1045 Wick Filter, 16-3/4 in L, 4-1/2 in W, Plastic Frame, White

It's simple, it's all in the paper. The 1045 evaporative humidifier filter contains the highest quality of paper. As a result, it has greater absorbency, a longer lifespan and significantly more moisture output. Each super wick is proudly made in the USA under Aircare's high-quality control standards.