GE Profile 27-inch, 4.3 cu. ft. Built-in Combination Wall Oven with Convection PK7800SKSSGE Profile series offers a 27" built in convection microwave and convection wall oven combination. The upper oven provides a 1. 7 cu. ft. capacity while the lower self cleaning oven features 4. 3 cu. ft., a Steam Clean option and an eight pass broil element. The True European Convection lower oven also provides a self clean, heavy duty roller rack and halogen interior oven lighting.