Non-powered roof vent. Self-centering device eliminates installation guess work and assures perfect alignment in roof opening. Attractive radius corners are standard.Screen allows air through while keeping insects out. Positive-seal weather stripping is leak resistant and water tight. One piece seamless frame with a deep drawn painted metal base. For replacement lid use KMS# 4107292. 14" x 14".

 PROP 65 WARNING: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For more information, visit www.P65Warnings.ca.gov