The Sigma-Aldrich 2 Piece Vacuum Trap is a high-quality pump accessory designed for use in vacuum systems. Made in the United States by Sigma-Aldrich, this trap is a reliable and efficient solution for trapping and removing impurities and contaminants from the vacuum stream. With its 2 piece design, this trap is easy to assemble and maintain, making it a convenient and practical choice for various industrial and scientific applications. Two-piece vacuum trap, threaded S.T. 45/50 joints, hose barb at 180 degrees.