3″ or 4″ Black Plastic Roof Cap – Item #3540

• Roof Cap is for Shingle Roof Installations Only
• Opening/closing damper prevents outside elements from entering the vent
• Screen prevents birds from nesting inside of vent
• Can be used in either 3″ or 4″ installations
• Designed to prevent leaks with proper installation
• Not recommended for clothes dryer venting

Product Contains:
(1) – 4″ Black Plastic Roof Cap
(1) – 3″ Collar
(1) – 4″ Collar