NSF-listed Commercial HCF Cartridge Filter System from Hayward features an impressive 700 sq ft of filter area for extra-long filter cycles and heavy-duty dirt-holding capacity. Easy access to the eight compact cartridges means fast cleaning. The filter system reduces operation costs by eliminating backwashing. Ideal for new construction or retrofitting - accommodates commercial flow rates up to 150 GPM. Tough filter exterior molded from glass-reinforced copolymer. 2 in or 2 1/2 in connections with full 2 in internal piping.