The Wavin Osma SquareLine Fabricated Gutter Angle 100mm Black (4T999B) is a precision-engineered gutter fitting designed to create clean, sharp angles in your drainage system. Manufactured for durability and weather resistance, this fabricated angle ensures a seamless fit with SquareLine 100mm gutter runs. Ideal for both domestic and commercial applications, it provides reliable rainwater management and long-lasting performance.