The I.D. to I.D Diameter Pipe Coupler (GR-CP-458A) is a practical and versatile solution for connecting pipes with a 4 1/2 inch diameter. This aluminized coupler is 8 inches long and fits most makes and models, making it a convenient choice for a variety of applications. Available in varying diameters ranging from 2 inches to 8 inches, this pipe coupler offers a wide range of options to suit different needs. Whether you're working on a small repair or a larger project, this durable and reliable coupler is a valuable addition to your toolkit.