The Metra 101 Rubber Expansion Joint
The Metra 101 adds flexibility to your roof drain piping.
Metra 101 is used to reduce the expansion and contraction movements in all types of vertical leaders, pipes, stacks and vents or soil lines in order to prevent damage to this material and to the building.
Pressure/temp: 4.3 PSI/122°F
Compression: Up to 1-in.
Elongation: Up to 1/2-in.
Angular movement: Up to 15°