Sure Power recalls Equalizers on 24 Volt Systems Sure Power Industries has recalled several models of Equalizers that are installed on Cottrell equipment with 24 volt systems. The remedy is to swap the equalizer out to the current design. If you receive a notice in the mail or have a questionable unit, please contact Chris Nish with Cottrell at (800)827-0132 ext 313 and he will assist you. Download PDF