The Smoke Factory SF-50345 O-Ring for Quick Coupling (Sealing Ring) is a high-quality replacement part designed specifically for ensuring a secure and leak-free connection in your smoke machine's quick coupling system. This durable sealing ring is crafted to fit perfectly within the quick coupling mechanism, providing an airtight seal that prevents any fluid or air from escaping. It is essential for maintaining the optimal performance and reliability of your smoke machine, ensuring consistent output and preventing unwanted leaks. Ideal for professional use in events, stage productions, and other applications where reliable smoke machine operation is critical, the SF-50345 O-Ring is a must-have for any maintenance toolkit.