This sleek Brown slim duct flat 90 degree ell (elbow) is designed specifically for SK-100-B line set cover systems, providing a clean and professional finish to your installation. The elbow seamlessly connects line set cover sections, maintaining a consistent appearance throughout the run. Made with durable materials, this elbow component features a thoughtfully engineered design that ensures proper alignment and secure connection of duct segments. The pure brown finish blends harmoniously with existing ductwork, making it ideal for both residential and commercial applications. Its compact profile minimizes visual impact while maintaining full functionality. Installation is straightforward, with pre-designed connection points that help achieve a precise fit. This coupler is an essential component for creating a polished, continuous appearance in your line set cover system, effectively concealing and protecting underlying pipes and cables while maintaining aesthetic appeal.