Commercial Model: E305 Bowl Size: 330mm diameter Waste & Overflow set: N/A Model: E520 Bowl Size: 23-1/2” x 19-1/2” x 9” Waste & Overflow set: NA Model: EW-07/EW-09 Model: E303Bowl Size: 393 x 310 x 145Waste & Overflow set: NA Model: E510 Bowl Size: 430 x 330 x 230 Waste & Overflow set: NA