2500 Series Windows  -  Features

• Features
• Options
• Test Results

Quadruple weather-sealed windows featuring two pivoting sashes that slide.

• All-PVC multi-chamber design and multiple weather-stripping deliver amazing energy performance.
• Double co-extruded outside sash for superior water tightness.
• Interior glazing bead: key design component for withstanding 220 mph (350 km/h) winds.
• The most internal chambers: outstanding insulation, noise reduction, thermal efficiency, and strength. Ranked number 1 out of 22,000 windows tested by the US NFRC for energy performance.
• Full-size, double-walled handle bead: remarkably sturdy, built for years of tough use.
• Mounting hardware installs through at least 2 PVC walls for secure, time-tested placement.