The Over The Top universal dryer vent kit feature two 4-foot sections of pipe attached to two close elbows and two clamps for wall and dryer connections. This 8-foot kit installs in 4.5" when the wall pipe is trimmed flush and the wall plate is used. Snap-Lock swiveling collars on the elbows allow for the dryer to be pulled away from the wall for cleaning without disconnecting the system.