1. 【MODEL MATCHING】Through our extensive research, we have found that these 6-quart sealing rings are compatible with the following pressure cooker models: IP-DUO60, IP-LUX60, IP-DUO50, IP-LUX50, Smart-60, IP-CSG60, and IP-CSG50, as well as the 6-quart Ultra. 2. 【DISHWASHER SAFE】Our sealing ring is BPA-free, crafted from high-quality 100% food-grade silicone that is heat-resistant and free from carcinogens. It is easy to clean, dishwasher-safe, and does not retain any lingering odors, ensuring the health and well-being of your family. 3. 【REPLACEMENT FREQUEBCY】To ensure optimal performance, it is strongly recommended to replace the sealing ring every 12-18 months. The two wires on the edge create a secure groove for easy installation. Once properly fixed in place, it should not be easily dislodged. 4. 【HIGH HEAT RESISTANCE】Our pressure cooker sealing ring is designed to withstand extreme temperatures from -22°F to 932°F, ensuring durability and safety in your kitchen. Cleaning is a breeze—simply wash it like your dishes or disinfect with boiling water. Experience peace of mind with our high-quality, heat-resistant sealing ring.