【Part Numbe】Replacement parts for Presto steam guage 85772 82237 82121 【Compatible With】This cooker pressure fit Presto canner models: 178001, 178005, 178006, 178107, 178410,01/CG22, 175001, 175005, 175006, 175107, 01755, 0175510. 【Precise Pressure Monitoring】:This pressure gauge accurately displays the current pressure status from 0-20 PSI during use with your pressure Cooker Canner. 【Easy Installation】Simply install the hexagonal silicone rubber washer and stainless steel nut consecutively onto the lid of your pressure cooker (not for use while cooking). 【Durable Construction】 Crafted with high-quality materials to withstand the demands of pressure cooking. 【Safe Operation】Helps ensure proper pressure levels are maintained for safe and efficient pressure cooking. This pressure gauge is an essential accessory for monitoring the pressure inside your pressure cooker or canner. With a measurement range of 0-20 PSI (0-1.38 bar), it accurately displays the current pressure status during use, ensuring your food is cooked safely and evenly. The gauge features a hexagonal silicone rubber washer and stainless steel nut that can be easily installed onto the lid of your pressure cooker or canner. It's important to ensure the pressure cooker is not in use when installing the gauge. This durable and reliable gauge is a must-have for any home cook or canner who wants to achieve perfect results every time. Always follow the manufacturer's instructions for safe and proper use.