The product is a lot of 15 Mueller Streamline PF lead-free copper 45-degree elbows with a 1 x 1 CTS diameter. Manufactured by Müller in the United States, these fittings are ideal for use in various piping systems, particularly in the fields of hydraulics, pneumatics, pumps, and plumbing. With their high-quality construction and reliable brand reputation, these elbows provide a durable and efficient solution for connecting pipes at a 45-degree angle.