D&D Engineered Products supplies high-quality O-rings and sealing accessories designed to deliver reliable performance in demanding applications. Available in a wide range of sizes, materials, and durometers, our O-rings provide dependable sealing against fluids, gases, and contaminants. Whether you need standard AS568 sizes, metric options, or custom-engineered solutions, we offer the right products to keep your equipment running at its best. To complement our O-rings, we also carry installation tools, lubricants, and backup rings, ensuring you have everything you need for efficient installation and long-lasting service.