Features of the -131 model: This product is a straight stainless steel water hammer eliminator. The appearance design complies with industry standards. It is manufactured using precision technology, providing a smooth surface finish while ensuring durability and a long service life. Professional specification design: Features a 1/2-inch male pipe thread (MIP) connection for quick and secure installation. Compatible with various standard wastewater piping systems, effectively reducing water hammer noise and promoting smooth pipeline operation. Flexible installation options: Supports multi-directional installation. No requirement for specific orientation, allowing flexible placement based on actual pipeline layout, simplifying installation and saving time and labor. High-performance temperature and pressure resistance: Maximum working temperature of 250 degrees Fahrenheit and maximum working pressure of 250 PSIG, ensuring reliable performance across a wide range of operating conditions and suitable for demanding industrial applications. Safety and lead-free certification: Constructed from lead-free copper materials, compliant with U.S. safety standards for drinking water system components. Safe for use in applicable plumbing systems. Color: Silver & Gold Material: Copper Package Contents: 2 x Water Hammer Arrester Note: The package includes only the items listed above. Other accessories or products are not included. Note: Lighting effects and display settings may cause slight variations in color between the product image and the actual item. Measurement tolerances may vary by +/- 1-3 cm.