Hydrotools Model 76071 SURE-FLO 70 SQ FT Cartridge Filter System with 0.9 THP Pu. The SURE-FLO 70 SQ FT Cartridge Filter System includes a new energy efficient 0.9 THP pump that is capable of circulating 4500 gallons per hour, great for pools that hold up to 19,000 gallons. The new Sure-Flo filters are designed to capture debris and clean pool water with consistent performance and energy efficiency. Includes a 70 square foot filtration area, which is ideal for pools up to 19,000 gallons. Single-Cell filter design makes rinsing and washing the filter fast and simple. The included pump has been redesigned to be compliant with DOE energy efficiency regulations and optimized for lower noise levels. The filter tank top cover features a tightening ring and latch locking system to keep your system air tight, but allow quick filter changes. Also includes a pressure gauge and a release valve. Heavy duty design: filter tank, pump and components are molded with UV resistant materials that are built to last. Complete system includes: filter tank, cartridge elements, mounting base, pump, two (2) 1.5 filter connection hoses and adapters.