• White exterior and a pre-finished white interior saves you time in finishing.
• Low-E glass provides outstanding overall performance where both heating and cooling costs are a concern.
• Conversion kits are designed to convert your Narroline® window into a convenient tilt-wash window.
• The kit replaces a narroline 20310 window with visible glass dimensions of 20 7/16" wide by 19 15/16" high. The replacement will have visible glass dimensions of 19" wide by 19 15/16" high.
• Includes our exclusive Owner-to-Owner® limited warranty. Limited Warranty.
• Includes jamb liners, sash, balancers, new lock and installation instructions.
• Window sash are not routed for recessed older style lock or recessed hand lift. A new sash lift may be needed.

Do not use conversion kit with combination units dated March 1994 or earlier. Date of manufacture is printed on the outer edge of the combination frame. If "AW" is not molded into the handle of the lower panel, the unit is older than March 1994.

For more information please visit the Narroline® Double-Hung Conversion Kit Support Page