This Square D 9037HG31R closed-tank float switch for a power circuit and use with water, hydraulic oils, and corrosive fluids attaches with screw-in bushing side-mounts to a closed-tank and activates a condensate or other pump. It has a NEMA 1 enclosure for protection and reverse-acting contacts that open on liquid rise. The float on this switch is positioned on the right at 90 degrees with a 7" offset. Square D switches are manufactured by Schneider Electric. Square D brand pressure, float, and limit switches have been synonymous with safety, quality, and reliable performance for over 100 years. First launched by Detroit Fuse and Manufacturing in 1902, the Square D brand and its products continue to earn customer trust today.