The House Suction Irrigator 70mm 2.5x4fr is a surgical instrument designed for use in otologic procedures, combining both suction and irrigation capabilities. The 70mm length makes it suitable for reaching specific areas in the ear canal or middle ear. The 2.5x4fr size designation indicates the dimensions of the suction tube, with a 2.5 French outer diameter and 4 French inner diameter, making it appropriate for moderate suction and fluid irrigation.