// Parts Catalog
POROSITY BOTTOM BRACKET
2.3mm standard residential porosity bottom bracket. Left and right. Most common bottom bracket for residential installations.
Specifications
| Thickness | 2.3mm |
| Sides | Left and right |
| Type | Porosity bottom bracket |
| Surface | Zinc plated or pre-galvanized |
| Application | Standard residential sectional doors |
Bracket Series
CH1109
Porosity Bottom Bracket
Standard residential porosity bottom bracket. Left and right sides. The bottom bracket connects the lift cable to the bottom section of the door. High-cycle replacement part. Most common bottom bracket for standard residential installations.