Pentair 5800 Series Fleck valves, developed on the same platform as the 5800, 5810 and 5812 valves, offer flexibility with a familiar appearance, while reducing carrying costs. The 5800 Series provides high-flow solutions for large residential and small commercial applications; uses the same Pentair powerhead and controller options; offers three interchangeable pistons; features a standard valve body for upflow, downflow and filter applications and are easily serviced with the same snap fit and seal and spaced principles. The 5810 features a fully adjustable 3- or 5-cycle control and offers a continuous service flowrate of 37 gpm (140 L/m) with a backwash of 28 gpm (106 L/m). Backwash capability accommodates softener tanks up to 21 inches (53 cm) and filters up to 21 inches in diameter. The 5212 series features a fully adjustable 3- or 5-cycle control and offers continuous service flowrate of 45 gpm (170 L/m)with a backwash of 35 gpm (132 L/m). Backwash capability accommodates softener tanks up to 24 inches (60 cm) and filters up to 24 inches in diameter.