Superior Thermal & Sound Insulation】 The double-glazed hollow glass design provides excellent insulation, reducing cooling and heating costs while saving energy. The superior soundproofing creates a quieter, more comfortable home. 【Durable & Easy to Install】 The lightweight yet sturdy vinyl frame ensures durability and energy efficiency. The removable glass and frame allow for quick and easy installation, perfect for any space. 【Replaceable Mesh for Ventilation】 The detachable screen promotes airflow while keeping pests out. Easily replace the mesh when it gets dirty to keep the air fresh. Ideal for homes, bathrooms, barns, and more. 【Smart Design】 The galvanized crescent latch is rust-resistant, durable, and rotates smoothly for added security. The drainage holes efficiently remove water, preventing leaks inside.