400CM(157") Window Seal Kit, Casement AC Window Vent Seal Kit, 100% Sealing Effect Waterproof Window Seal Kit, Easy Installation, Fit for Single&Dual Hose 1~6in Portable Air Conditioner, Tumbler Dryer

Superior Insulation for Maximum Cooling Efficiency

Our premium window AC seal kit creates an airtight barrier that locks cool air inside while blocking hot outdoor air from entering.

By eliminating drafts and air leaks, this innovative solution helps your portable air conditioner work up to 30% more efficiently - delivering faster cooling while reducing energy costs.

The thermal-resistant design maintains your ideal room temperature without overworking your AC unit.

Universal Fit for Most Window Types

Engineered to fit:

• Casement windows (inward & outward opening)

(300cm 400cm 500cm wide)

Compatible with both single-hose and dual-hose portable AC units. For perfect fitment, please measure your window dimensions before purchase.

Weatherproof & Durable Construction • Waterproof TU fabric repels heavy rain and moisture • UV-resistant coating prevents sun damage and fading • Reinforced stitching for long-lasting performance • Tear-resistant material withstands harsh weather conditions

Hassle-Free Installation in Minutes No tools! No drilling! Our smart design features: Peel-and-stick adhesive strips for secure mounting Integrated zipper system for easy AC hose access Adjustable design can be trimmed for custom fits Removable without residue when season ends

Hassle-Free Installation in Minutes

No tools! No drilling! Our smart design features:

Peel-and-stick adhesive strips for secure mounting

Integrated zipper system for easy AC hose access

Adjustable design can be trimmed for custom fits

Removable without residue when season ends

Multi-Protection Benefits

Beyond temperature control, our seal kit provides:

Insect protection - keeps mosquitoes and pests out

Noise reduction - minimizes outdoor sounds

Dust barrier - prevents pollen and pollution entry

Privacy screen - blocks outside view

Why Choose Our Window Seal Kit?

Increases AC efficiency - cooler rooms, lower bills

Simple installation - works for renters and homeowners

Year-round use - great for both summer and winter

Space-saving - folds compactly when not in use

Product Specifications:

• Material: Premium TU fabric + PVC coating

• Color: Black/Gray (discreet appearance)

• Maximum width: 400cm (can be trimmed)

• Hose compatibility: Fits tubes up to 15cm diameter

Package Includes:

1× Window seal panel

1× Adhesive mounting strip set

1× Instruction manual