The Wavin Osma Squareline Connector to 4.5" Roundline Gutter (4T818B) is a durable black PVC adaptor designed to connect Squareline gutters to 100mm Roundline systems, ensuring a secure, watertight transition for domestic and commercial rainwater installations.
The Wavin Osma SquareLine 4T818W Adaptor to RoundLine in White is a premium PVC-U fitting designed to seamlessly join SquareLine gutters with RoundLine downpipes. Ideal for domestic and commercial rainwater systems, this adaptor ensures secure, leak-proof connections while maintaining efficient water flow. Its durable, UV-resistant construction guarantees long-lasting performance and simple installation, making it a reliable choice for versatile guttering solutions.