Zero International Inc.
"Free-flow" louver is designed for areas where added protection is needed. Adaptable for 1-3/4-inch and 1-3/8-inch doors. "Y" blade design and concealed screws. Louver is 20-gauge cold rolled steel with 11-gauge security mesh on both sides. Available in a number of stock sizes or special order. All sizes have powder-coated finishes.
Horton Automatics: BH Slider
Kimball International: Shore
Protimeter: Aquant
Sensaphone: Sentinel PRO
KI: Passel