1-Lite Clear Rectangular Glass 1/2 Insert, White Frame

Insulated Glass Inserts

RSL’s insulated glass inserts are designed with maintenance-free frames, offering the flexibility to be stained or painted, with or without a primer. Each product undergoes a thorough inspection to ensure consistent, high-quality standards. For added assurance, RSL stamps their name on the glass, frame, and spacer bar. Crafted from safety-tempered glass, these inserts are thermally sealed to provide lasting strength and energy efficiency. Featuring Low-E Glass technology, RSL doorglass reduces heating and cooling costs by 25-35% (U.S. Green Building Council). In the summer, it minimizes solar transmission, while in the winter, it reduces heat loss and maximizes solar energy inside. RSL doorglass meets and exceeds national building code requirements for thermal performance in steel and fiberglass doors.