20″ Factory Mutual (FM) Approved Carbon Steel Two-Piece Backing Ring to Fit High Density Polyethylene (HDPE) DIPS Pipe FM04G80-21/8-DIPS #FM20G80-21/8-DIPS
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Specifications
| Legacy Part Number | FM20G80-21/8-DIPS |
| Brands | MARZOLF™ |
| Size | 20″ |
| Inside Diameter (I.D.) | 21.85″ |
| Outside Diameter (O.D.) | 27-1/2″ |
| Thickness (T) | 2-5/8″ |
| Bolt Circle (B.C.) | 25″ |
| Number of Holes | 20 |
| Holes Diameter (H.D.) | 1-1/4″ |
| Materials | Carbon Steel |