Multi-chamber construction with fusion-welded corners. Full perimeter weatherstripping ensures tight seal.
Pre-punched nailing fin for easy installation and secure fit.
Self-centering interlock satisfies forced entry requirements.
Powder-coated handles resist scratches and fading. Exterior handles available with or without keyed lock.
Adjustable rollers ensure smooth operation; durable aluminum threshold and sill track.
*Also available with no grilles.