This adjustable chimney short kit will allow for ZLINE Wall Mount Range Hood mounting on 7.4 ft. to 8 ft. ceilings. Two 12 in. tall telescoping (adjustable) chimney pieces will replace the 2 standard 16 in. chimney pieces (supplied with your ZLINE Wall Mount Range Hood) to allow for mounting on ceilings less than 8 ft. Pieces adjust between 13 in. to 23 in. Brushed stainless steel finish will match your range hood and add a sleek, elegant look to your home.