The Rule-A-Matic Float Switch Model 35A is a reliable and efficient marine device designed for boats and bilges. With a warranty of 2 years and manufactured by Xylem in Costa Rica, this float switch is mercury-free and operates on 12-24-32 VDC systems. The lightweight design at 0.6 lbs makes it easy to install and the compact size of 8" x 5" x 4" ensures it fits in various locations on the boat. This white float switch is a crucial component for maintaining the proper water level in your marine vessel.