Our racks are perfect for keeping jars off of the bottom of the pressure cooker / pressure canner while canning. Our 2-pack allows you to create multiple layers in a batch, speeding up your canning - all at a great value! Measuring 11" in diameter, our racks are compatible with Presto (TM) 01781 23-Quart, All American (TM) 21.5-Quart, T-fal (TM) P31052, Granite Ware (TM) 0730-2, Mirro (TM) 92122A and more. Made from high-quality, durable stainless steel, our canning racks are built to be used over and over again! PLEASE MEASURE YOUR PRESSURE COOKER/CANNER BEFORE PURCHASING TO ENSURE FIT. It must have 11 inches of usable interior diameter - IF NOT, THIS WILL NOT WORK FOR YOU. This is a generic product manufactured and distributed by Impresa Products (TM). This is not a Presto (TM), All American (TM) / All-American, T-fal (TM), Granite Ware (TM) or Mirro (TM) OEM product and Impresa Products has no affiliation with or endorsement from Presto (TM), All American (TM) / All-American, T-fal (TM), Granite Ware (TM) or Mirro (TM). Our product is not covered under any Presto (TM), All American (TM) / All-American, T-fal (TM), Granite Ware (TM) or Mirro (TM) manufacturer's warranty. The Presto (TM), All American (TM) / All-American, T-fal (TM), Granite Ware (TM) and Mirro (TM) brand names and logos are the registered trademarks of their owners. Any use of the Presto (TM), All American (TM) / All-American, T-fal (TM), Granite Ware (TM) and Mirro (TM) brand names, models or any other related designations are made solely for purposes of describing and illustrating compatibility.