EasyPro Pond Products 29" x 24"  Heavy Duty Fountain and Waterfall Basin, Holds vases and rock columns up to 300 LBS. 11.5" Clearance inside basin with lid on, pump access door 4" x 5.5", 5 - 1" and 1 - 1.25" diameter per drilled holes in lid for tubing Holds vases and rock columns up to 300 LBS. with internal support columns 24" W x 29.5" L x 13.5" H Perfect for fountains, bubble features, waterfalls, and vases