• Size 18510 lower sash without grille grommets.
• For units manufactured May 2010 to present. With interior removable grilles using chisel style fastener - see image above.
• White exterior with a patented Flexacron® finish and an unfinished pine interior.
• Low-E tempered glass provides outstanding insulating performance in both heating and cooling climates. Specific building codes may require certain windows to be tempered.
• Visible glass dimensions are 15" wide by 31 15/16" high.

Flexacron is a trademark of PPG Industries, Inc.