Grease Duct, Boiler Stack, Engine Exhaust 
 
New!ZeroClear Grease Duct 
 
Model G
 
Type B Gas Vent 
 
HighWind Top 
 
Neutral or Negative Draft and Oil Vent 
 
New! Model DFS
 

NEW! Special Gas Vent System Saf-T Vent EZ Seal