The T&S Brass 003164-45M25 Rubber Plungers for Eterna Cartridges with Spring Checks (25 per Bag) are precision-engineered components designed specifically for use within plumbing systems that utilize Eterna cartridges. Each bag contains 25 rubber plungers, providing an ample supply for maintenance and repair needs. These rubber plungers are equipped with integrated spring checks, enhancing their functionality by ensuring reliable water flow control and backflow prevention. This particular product is ideal for use in various segments of the plumbing industry, including commercial and industrial sectors, where durability and efficiency are paramount. The design of these rubber plungers prioritizes compatibility with Eterna cartridges, ensuring a seamless fit and optimal performance. The T&S Brass 003164-45M25 Rubber Plungers are crafted from high-quality materials to resist wear and tear, ensuring a long service life and reducing the need for frequent replacements. Their ease of use and installation makes them a practical choice for plumbing professionals seeking dependable components for system maintenance and repair. The inclusion of 25 plungers per bag provides sufficient quantity for multiple applications, making it a cost-effective solution for businesses seeking to maintain the integrity of their plumbing systems while adhering to industry standards.