For a 14" square rough opening. Exclusive self-centering device eliminates installation guess work, assures perfect alignment in roof opening. Attractive radius corners are standard. Screen allows air through, keeps insects out. Positive-seal weather stripping is leak resistant and weather tight. Acrylic UV resistant translucent lid conforms to Federal Motor Vehicle Safety Standard (FMVSS) No. 205 glazing materials. Hand crank opens and closes lid securely. Pin hinge style. For replacement lid use KMS# 4100292.

 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