The Glasfloss Puracell® II M-S & MH-S Mini-Pleat Series filters are designed for use in applications where a high degree of efficiency is required in a 4″ filter. The Puracell® II M-S & MH-S Series combines state-of-the-art mini-pleat construction techniques with superior reliability to offer maximum value for commercial and industrial applications. Additionally, the Puracell® II M-S & MH-S filters offer unique advantages over the traditional 12″ rigid box filter including lower freight costs, reduced storage area requirements and less impact on landfills. The Glasfloss Puracell® II M-S & MH-S filters come in a variety of sizes and performances.