Adjustable Wall Mounted Ventilation Vent with Proof meshing for smooth 185 to 335mm Wall Adaptability and Bidirectional airflows Combines weather resistant design with compactness meshing barriers to 98% of particles and rainwater , ensuring maintenance without Engineered with telescoping PVC metal construction and integrated rain guards, featuring auto adhesive sealing strips to draft while maintaining whispers quiet operate designs for homeowner search permanent ventilation solution in humid kitchens, basements, or inclined living areas requiring continuous air refreshment Optimizes indoor air circulation in residential space through its double action airflows systems and washable not filter, effectively reducing condensation and odors, Manufacturer: ZYKEJJDDAK