This procurement is for 20 engine air envelope units with a one-year contract term or until total orders reach $350,000. The guaranteed minimum quantity is 2 units, with an estimated 4 orders per year. Delivery is required within 117 days after receipt of order, and items will be shipped to various DLA Depots within and outside the continental United States. The item is source-controlled with two approved manufacturers, and all quotes must be submitted electronically. Furnished items must meet the requirements of the cited drawing.