Easy to Install & Disassemble: This window vent kit includes Main Plate × 1, Track Plates × 2, Extension Plate × 1, φ5.1" Hose Adapter × 1, φ6" Duct Adapter × 1, φ4" Duct Adapter × 1, Bolts and Wing Nuts × 4, and a roll of 10ft Seal Tape; Just insert and secure the plates on your vertical or horizontal sliding windows, then connect it to the hose Easy to Install & Disassemble: This kit includes Main Plate × 1, Track Plates × 2, Extension Plate × 1, φ5.9" Hose Adapter × 1, φ6" Duct Adapter × 1, φ4" Duct Adapter × 1, Bolts and Wing Nuts × 4, and a roll of 10ft Seal Tape; Just insert and secure the plates on your vertical or horizontal sliding windows, then connect it to the hose Due to widespread sizing incompatibility issues in the current market, we redesigned this product with a fully universal size in 2026. It is ready to use right out of the box. Perfect Pairing with Inline Fans: Designed to work with 4-inch, 5-inch, 6-inch, This duct vent hose window kit is specifically engineered to be paired with inline fans, facilitating seamless ventilation to the outside environment, ensuring a constant flow of fresh air exchange.HVAC ducts, dryer vents, portable air conditioners, and ducted fans VERTICAL & HORIZONTAL USE: window dryer vent kit suitable for most vertical and horizontal sliding window. You can make different combination according to the size of the window: use a 2-plates or 3-plates or 4-plates combination. No tools required. Adjustable length range: 17 inch or 25 inch to 59 inches. Plase check before you buy. Durable Material: This window vent kit is constructed from high‑strength PVC for excellent durability, resistance to extrusion, aging, and daily wear. It remains intact without cracking, warping, or peeling even under long‑term sun exposure and extreme summer heat, providing reliable performance for years to come.