Electrical Mast Connection (EMC) Pipe Range 0" to 5-3/8" (0mm to 136.52mm) Offers a built in 20 pitch for slanted roofs. Is marked with dimensions to allow for easy sizing to fit each individual application. Comes with single stainless steel Gripper to hold the seal in place. Aluminum panel allows the pipe boot flashing to conform to any panel configuration and/or roof pitch