The 90 DEGREE WALL CORNER, 4 IN. by MARS is an essential fitting for creating sharp turns in piping systems. Made from high-quality materials, this corner fitting is designed to withstand the rigors of plumbing and HVAC installations. With a 4-inch diameter, it provides a perfect fit for standard pipes, ensuring a leak-free connection. This wall corner is ideal for both residential and commercial applications, allowing for efficient routing of pipes in tight spaces. Its durable construction ensures longevity and reliability, making it a must-have for any contractor's toolkit.