From Floplast
Half Round Gutter Unions, sometimes referred to as joiners, are used to connect two lengths of half round gutter together in a run. Key Features: The original Half Round profile. A practical, easy to install system. Good flow capacity. Pre-fitted gutter seal retaining clip system for fast user friendly installation. Pre-lubricated seals. Cost effective solution for both new build and Refurbishment applications. Connects to most other metal or plastic systems, using our extensive range of adaptors.