medium capacity 2 way vent cna

PRODUCT DESCRIPTION

• Provides pressure equalization in roof system
• Low cost
• all-metal breather used for venting all types of insulation 
• Spun from heavy gauge aluminum 
• An extra wide base opening and security attached cap 
• An optional foam insert is available to prevent moisture from condensing on the inside of the standpipe 
• Simple & easy to install 
• Unique cap design shields against entry of wind-blown rain or snow 
• Flange may be coated with asphalt priming or PVC This vent is two way and air will travel in and out. Made in U.S.A. CNA = Cap Not Attached for ease of installation