Now features an environmentally friendly designDependable Silver Tin Oxide contacts have replaced the mercury used in the previous generation of this switch. It features a larger float for increased buoyancy, and a convenient snap-in base that allows easy switch removal for cleaning or inspection. A resilient rubber grommet provides strain relief to the sealed wiring that now exits from the top to keep it dry. Activation Method: Mechanical AgSnO2 contacts Dimensions: 2-5/8"H z 1-3/4"W x 5"L Capacity: 14A @ 12/24/32V DC Warranty: Two years