Deflecto Dryer Vent Draft Blocker, 4-Inch Inline Backdraft Damper, White | Durable plastic 4-inch diameter dryer vent draft blocker with gravity flap

The Deflecto Plastic Dryer Vent Draft Blocker is a reliable solution for preventing drafts from entering your dryer. It is simple to install, although some users found it a bit cumbersome to do alone. The blockage of cold wind is effective, ensuring that the outside elements stay where they belong. Customers in colder climates especially appreciate this product, as it helps keep out the cold and maintain a warmer indoor environment. The convenience of just unscrewing the blocker when not in use and replacing it with an insulation puck is a major advantage, saving time and effort compared to detaching the vent tube each time. However, some users experienced difficulties with the installation. The blocker did not securely clip on to 4" fans, leading to the need for duct tape to hold it in place. In some cases, the blocker stayed open, defeating its purpose of blocking drafts. This flaw seems to be due to incorrect Construction, as the advertised 4" dryer vent hoses did not fit around the opening. Overall, the Deflecto Plastic Dryer Vent Draft Blocker provides a satisfactory solution for preventing unwanted drafts. Its effectiveness in keeping out both cold wind and pests is praised by customers, although the installation process may present some challenges.