| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR BOTTOM RING |
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR TOP RING |
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR INTERMEDIATE RING |
| ENVIRONMENTAL ATTRIBUTE CODE | ASBESTOS ALTERNATIVE PRODUCTS |
| MATERIAL | FIBER AND GRAPHITE INTERMEDIATE RING |
| MATERIAL | GRAPHITE AND FIBER TOP RING |