Both the Eco Plus 230 and 240 are High Volume, Self Priming Multi Stage Pumps that employ Non-Corrosive and Rust-Proof Construction. Illuminated Watertight Off/On Switch makes working in low light a snap. Built In Thermal & Amp Protectors ensure your site stays safe. NOTE: Eco Plus 240 has an instantaneous HP of 1, but the level, continuous HP is 3/4.