| Part Number | “W” | “L” |
| 6-H Base HDG | 8″ (203.2mm) | 14″ (355.6mm) |
| 6-H Base SS | 8″ (203.2mm) | 14″ (355.6mm) |
| 8-H Base HDG | 16″ (406.4mm) | 12″ (304.8mm) |
| 8-H Base SS | 16″ (406.4mm) | 12″ (304.8mm) |
| 16-H Base HDG | 20″ (508mm) | 20″ (508mm) |
| 16-H Base SS | 20″ (508mm) | 20″ (508mm) |
