The Flexseal Drainage Adapter Coupling is a versatile and reliable solution for connecting pipes of varying sizes. Ranging from 121-136mm to 110-121mm, this universal product offers a secure and leak-free seal, ensuring optimal performance in any drainage system. Crafted from durable materials, its designed to withstand the rigours of heavy use while still providing an easy installation process. Whether youre working on a residential or commercial project, the Flexseal Drainage Adapter Coupling is an excellent choice for effective and efficient plumbing solutions.