| Code(s) | Option | Overall dimensions |
| DS1800-2000 | W 16" D 16" | W 16" D 16" H 3" |
| DS1800-2001 | W 16" D 18" | W 16" D 18" H 3" |
| DS1800-2002 | W 18" D 18" | W 18" D 18" H 3" |
| DS1800-2003 | W 18" D 20" | W 18" D 20" H 3" |
| DS1800-2004 | W 20" D 20" | W 20" D 20" H 3" |
| Code(s) | Option | Overall dimensions |
| DS1800-2000 | W 16" D 16" | W 16" D 16" H 3" |
| DS1800-2001 | W 16" D 18" | W 16" D 18" H 3" |
| DS1800-2002 | W 18" D 18" | W 18" D 18" H 3" |
| DS1800-2003 | W 18" D 20" | W 18" D 20" H 3" |
| DS1800-2004 | W 20" D 20" | W 20" D 20" H 3" |
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