Panels are Easily Installed and AlignedExpansion and Contraction is Accomodated Without Buckling or StressIndividual Panels May be Removed for Access and MaintenanceCRLs 200 Series Deluxe Full Framed and Adjustable Wet Seal Panel System provides the extra strength required when large panels are being used. Interlocking mounting clips aid in panel-to-panel alignment, and at the same time allows for panel expansion and seismic movement without buckling or undue stress. By providing extruded aluminum entirely around the panel, extra rigidity affords panel sizes up to 60" (1524 mm) x 168" (4267 mm).