Flehomo Dual Hole Dryer Vent Window Kit for 3" & 4" Diameter Hose, Include Louvered Vent Cover & Self-Closing Flaps Cover, Adjustable Vent Kit for Exhaust Hose of 3D Printer, Laser Engraver and Dryer

["【Dual-Hole Upgrade for Multi-Device Use】Our Dryer Vent Window Kit features dual holes, compatible with 3\" and 4\" exhaust hoses, ideal for use with home laundry dryers, diesel heaters, 3D printers and laser engravers.","【Dual Vent Covers for Versatile Protection】Our dryer vent kit comes with a louvered vent cover (used as air inlet or outlet) and moving flap cover (used as outlet), preventing rain, debris and pests from entering while ensuring smooth air circulation.","【Dual Compatibility】The dryer vent kit is designed to fit both 3-inch and 4-inch diameter hoses, the kit works seamlessly with most standard venting equipment, perfect for your house.","【Adjustable Size for Most Windows】With slide rail design, 3 plates can be adjusted freely from a minimum of 16.5 inches to a maximum of 47 inches, fitting most sliding and hanging windows, with no need for custom cutting.","【Durable Material & Excellent Sealing】The dryer vent kit is made of lightweight, durable PVC, which seals windows tightly. Included aluminum tape and foam seal strip enhance insulation, helping to keep your home energy-efficient and free of outside drafts."]