Insulation Seals

Duck® Brand Air Conditioner Insulating Seals close the gaps between the window A/C unit and window frame to keep the cool air in and warm air out.

Summer Projects

Winter Projects All

Premium Window Seal

Premium Insulation Seals

Insulating foam seal
High-density foam for a weather-tight seal
Use with window A/C units

Ac Insulation Copy

Standard Insulation Seals

Insulating foam seal
Easy to install
Use with window A/C units