As our most comprehensive and adaptable collection, the 3-Series balances design flexibility with performance. With options for thermal and non-thermal applications, this line accommodates both traditional and modern aesthetics while maintaining slim sightlines and buried frame options for a refined finish.

The 3-Series offers a wide range of operation types, including sliding, hinged, folding, casement, awning, hopper, and fixed, making it ideal for high-end residential or commercial projects with diverse requirements. A broad selection of performance upgrades and customizations, including extreme-weather and HVHZ solutions, support tailored designs for any architectural vision.