Rated Positive Pressure:

10” w.g. per UL 181

Recommended Operating Pressures:

6” w.g. pos., 4”-12” dia., 4”w.g. pos., 14”-20” dia.; ¾” neg., all dia.

Velocity:

5,000 FPM

Flame Spread/ Smoke Developed:

25 max/ 50 max

Standard Lengths:

25’