| CROSS-SECTIONAL SHAPE STYLE | SPECIAL INTERMEDIATE RING | 
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR BOTTOM RING | 
| CROSS-SECTIONAL SHAPE STYLE | SQUARE/RECTANGULAR TOP RING | 
| INTERMEDIATE RING QUANTITY | 1 | 
| MATERIAL | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR INTERMEDIATE RING | 
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE  AND GRAPHITE BOTTOM RING | 
| MATERIAL | PLASTIC POLYTETRAFLUOROETHYLENE  AND GRAPHITE TOP RING | 
| OUTSIDE DIAMETER | 1.637 INCHES NOMINAL |