0" to 18" Dryer Vent Periscope by Builders Best
Saf-T-Duct® Periscopes by Builders Best are 2" x 6" rigid aluminum with 4" draw-band collars and snap-lock™ crimped fittings. These periscopes reduce the space needed behind the dryer to around 2.5" without reducing airflow. The 0-18" Periscope reaches the side of most clothes dryers.
Buy the 0-18" Periscope here:
https://www.doitbest.com/shop/heating...
Similar, but longer length periscope available here:
https://www.doitbest.com/shop/heating...