21 – 37 in. W x 18 in. H Clear Wood Frame Adjustable Window Screen
The 37 in. to help it fit in a variety of windows. It has varnished wood ends and coated steel screening. W x 18 in. Screen Material Aluminum. Screen Type Standard.
Adjustable Vented Metal Window Mesh Bug Screen Ventilator Sliding Louver 10″x37″
Easily install the W B Marvin Adjustable Screen Ventilator for air circulation and privacy. It adjusts from 21 in. Constructed of hard wood and heavy duty aluminum. Adjusts from 21 in.