SLS™ SELF LEVELING SYSTEM SLS™ SELF LEVELING SYSTEM CONSTANT HIGH CLEANING PERFORMANCES. SLS ™ – mechanical or electronic system allows great cleaning performance by fully adapting brushes with floor unevenness. Applied to: CT5 CT71 CT51 CT 81 CT 80 CT 110 CT 160 CT 230 CT 45 CT 46 Benefits The brush pressure with self-levelling and self-adjusting head allows a perfect fit between brush and floor. System available as mechanical, electromechanical or electronic according to machines models.