Innovative Grade US Origin Porcine Lungs Trimmed Frozen Pair of 2 - Innovative Grade US Origin Porcine Lungs from Innovative Research is collected on a custom basis from US Origin abattoir animals located in the United States, ensuring that only the highest-quality material is provided. Processing Options IncludeTrimmed, Untrimmed, Untrimmed/Trachea, Untrimmed/Trachea/Esophagus, Trimmed/Trachea, Trimmed/Trachea/Esophagus. Most porcine lung products are available from adult, juvenile, or fetal animals. If you have an age preference, please note at time of ordering. If no preference is indicated, your order will be processed from our most readily-available age group. This product is available freshor frozen . We are able to accommodate most custom processing requests, so if you need something specific for your research, please be sure to let us know! If you're looking to order additional quantities, volume discounts may be available. Please inquire for a custom quote.