Hydrotools by Swimline's SURE-FLO Cartridge Filter Systems are meticulously designed to efficiently and consistently filter your pool while optimally conserving energy and complying to new DOE compliance and regulations. Sure Flo tanks are molded & double reinforced to ensure a reliable, air tight compartment for filtration. All lids feature our twist and lock latch system. Hydrotools Sure-Flo systems feature single-cell, oversized cartridge elements that are designed to evenly distribute debris, extending filter life & replacement cycle. Our included pumps have been upgraded to run on low noise levels, creating an enjoyable user experience for our customers. Hydrotools pumps now far exceed current performance and efficiency regulations. Sure Flo Systems come with everything you need out of the box. Components include: heavy duty non corrosive tank, cartridge element, base, high-efficiency pump, (2) 1.5'' filter connection hoses, adapters, and more.