18"x20" Perforated Basin

The Superior Sump Basin 20 Gallon has an ultra-strong reinforced bottom that will not buckle, deform or puncture. Gas and radon tight; odor-free. Basin is perforated with 48 factory drilled, 5/16″ holes. Size: 18″ x 22″ Capacity: 20 Gallons (fits 20 1/2” basin lid)