Hydrotools 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. Their tanks are molded and double-reinforced to ensure a reliable, air-tight compartment for filtration. All lids feature our twist and lock latch system. This Hydrotools Cartridge Filter features a single-cell, oversized cartridge element that is designed to evenly distribute debris, extending filter life and 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. Our Cartridge 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.