The Yellow Filtration Series features dual-layer technology and double-pleated filtration that offers long-term use and reliable performance with 5 and 20-micron levels. Constructed with a combination filter, they boast a Polypropylene String exterior and Melt blown Polypropylene core, creating superior surface area and significantly higher dirt-loading capacity and efficiency than standard wound filter cartridges. In addition, these media filters provide cost-effective, extended-life performance with service flow rates exceeding 30+gpm and a low Delta P of less than 15.