17.48 x 12.99 x 6.81 inches

Make sure this fits by entering your model number.
Adjustable Bath Chair, Fits Even in Small Bathtubs: 17.3 inch (W) x 10.6 inch (D) seat, 16.5 inch (W) x 7 inch (H) backrest, 5-level height and can be adjusted from 16.9 inch to 20.9 inchby snap botton (not by fragile plastic clips), 15 inch (W) x 13 inch (D) between legs, specially designed to fit small or narrow tubs.
Heavy Duty Shower Chair with Mechanical Structrue: With obtuse angle legs, reinforced crossing-braces added on heavy-duty anodized aluminum frame and large suction cup, our chair can supports upto 500 lbs. Also reduce 90% shaking, totally no bending, no slipping to provide stablity and sturdiness.