| Model No. | Description | Dimensions | Weight |
| Model 4-16BS | Extra Shelf | 48"W x 24"D x 2"H | 18 lbs. |
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For use with model numbers 45-CSU-183, 46-CSU-184, 46-BS-244, 46-BBS-243, 46-BSCW-241-3WLR, 43-BS-242, 43.5-BS-242, and 46-PB-244