• We offer two medium filters Series 420 & Series 440. Each filter is designed as a medium efficiency filter with an extended surface filter using 100% polyester to eliminate fiber shedding. The 420 is a only layer filtration product and the 440 is constructed with a two layer composite including a tackifier. • Available in a wide range of widths, lengths and depths • Self-Sealing Design • Progressive Density Media • Extended Surface Area (Cube or Multi?Pocket Design) • Rigid Corrosion?Resistant Metal Frame
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