VELUX BBX 100100 Vapour Barrier Collar

Create a healthy and comfortable indoor climate in your greenhouse with the VELUX BBX 100100 vapour barrier collar. This collar is designed to prevent moisture from entering the greenhouse, creating a more pleasant indoor climate for your plants. It is made of high quality and is easy to install. The package contains 2 vapour barrier collars. They are brand new and unopened, perfect for creating a healthy and safe environment for your plants in your greenhouse.