Parkinson Cowan P300 is a built-in oven and grill unit that offers a range of cooking options. The gas oven features heat zones, allowing you to cook different foods at different temperatures simultaneously. It has 4 shelf positions and comes with 2 oven shelves. The oven roof must be positioned on the top runner position when using the oven. The grill is located in the upper part of the unit and can be used for grilling various foods. The grill pan should be positioned on the servery shelf, which can be placed on any of the runner positions.