Located inside a small wooden box by the oven. At Callville Bay inside Captain Dean Boat Rentals in the furthest away display cabinet under the plates.Three are an undersized version, on the bottom shelf of each of the three metal shelves. There are eight in the Ultra-Luxe kitchen.The pressure cooker can be used in the Boomers quest Volare! and the unmarked NCR quest Not Worth a Hill of Corn and Beans to construct a rebreather and fix the Camp McCarran food processor, respectively. The pressure cooker is a miscellaneous item in Fallout: New Vegas.