The Built-In Oven Vent Trim Kit includes a 27-in L trim piece, all necessary mounting hardware and installation instructions. This white accessory creates a flush finished look for your built-in microwave or combination wall oven. A universal kit, this trim piece is compatible with many appliance brands and models, check to see ifyour model number is compatible. Installing this accessory will require basic hand tools and novice repair experience. You must unplug the oven or shut off the house circuit breaker for the appliance before installing this part.