4 Inch / 100 mm Through Wall Ventilation kit Adjustable Louvered Dryer Vent Cover with Pipe and Duct Connector White Plastic Built in Fly Screen Mesh (Style 1 4'' Inch)

PRECISE DIMENSIONS - Adjustable through-wall pipe length extends from 11.81" (300 mm) to 21.85" (555 mm) with a pipe diameter of 4.17" (106 mm). Total length with vent cover ranges from 16.18" (411 mm) to 26.22" (666 mm). Connection neck diameter: 3.70" (94 mm) with 1.18" (30 mm) installation depth. Inner wall flange outer size: 5.91" x 5.91" (150 x 150 mm) with screw hole spacing of 5.31" x 5.31" (135 x 135 mm). Outer vent flange dimensions: 6.02" x 5.83" (153 x 148 mm), cover screw hole spacing 4.37" x 3.74" (111 x 95 mm). Designed for standard wall-through ventilation systems and adjustable installation depths. DURABLE WEATHER-RESISTANT MATERIAL – Dryer vent kit made of high-quality, UV-stable plastic engineered for indoor and outdoor durability. Resistant to moisture, temperature fluctuations, and corrosion, ensuring reliable performance year-round. QUIET BACKDRAFT SHUTTER – Integrated backdraft damper opens automatically during airflow and closes when not in use, reducing drafts and blocking wind, rain, or snow. Ensures quiet operation while maintaining strong exhaust airflow. QUICK INSTALLATION – Features pre-drilled mounting holes for fast setup on interior or exterior walls. Easily disassembled front cover allows simple maintenance and access to the duct. Compatible with standard dryer vent hoses and wall connectors for a secure, airtight installation (SCREWS NOT INCLUDED). VERSATILE HOME APPLICATION – Ideal for dryer vent cover outside systems, bathroom fans, kitchen ventilation, HVAC outlets, and utility room ducting. Helps maintain healthy indoor air quality while shielding the duct opening from debris and environmental exposure on exterior façades, sheds, garages, and greenhouses.