Air Conditioner Side Curtain Foam - 12400202014169

Improve the energy efficiency and cooling performance of your window air conditioner with the 12400202014169 Side Curtain Foam. This specialized insulation strip is designed to seal the gaps between the air conditioner’s side curtains and the window frame. Without proper sealing, cooled air escapes to the outdoors while hot air, humidity, and insects enter your home, forcing your AC to work harder and increasing your utility costs. Replacing worn, compressed, or crumbling foam ensures a tight thermal barrier and a quieter operation.

Made from high-density, weather-resistant foam, this insulation strip is engineered to resist degradation from UV exposure and moisture. Its flexible structure allows it to compress easily into tight spaces, providing an airtight and watertight seal that helps maintain a consistent indoor temperature.

1. Preparation: Turn off the air conditioner. For the best seal, clean the window frame and the side of the AC unit with a damp cloth to remove dust and old adhesive.
2. Inspect the Old Foam: Pull away the old, damaged foam strips. Use a putty knife if necessary to scrape off any stubborn residue.
3. Measure and Cut: Hold the 12400202014169 foam strip against the side curtain to check the length. If it is longer than needed, trim it with scissors or a utility knife for a precise fit.
4. Apply the Foam: Peel off the adhesive backing (if applicable) and press the foam firmly into the gap between the AC side panel and the window track. If your model uses a non-adhesive slide-in style, tuck the foam securely into the channel.
5. Secure the AC: Ensure the side curtains are fully extended and locked. Close the window sash firmly against the top of the AC unit to compress the foam and create a final seal.
6. Check for Gaps: Feel around the edges for any remaining drafts and adjust the foam as needed.

Compatible with a wide range of window air conditioning units, this OEM-quality foam insulation is an essential part of a professional installation and seasonal maintenance.

• AC Side Curtain Foam – Part number 12400202014169
• Enhances Energy Efficiency: Prevents cool air loss and reduces workload on the compressor.
• Weatherproof Barrier: Blocks heat, humidity, dust, and insects from entering the home.
• Noise Reduction: Helps dampen vibrations and external street noise for a quieter room.
• High-Density Material: Durable foam construction that won't easily crumble or lose shape.
• Universal Trim-to-Fit: Can be easily customized to fit various window and AC sizes.
• OEM-Quality Standards: Reliable insulation performance designed to match original equipment.