SmartSeal™ is C-Thru's newest sealing system for dual glass with the most technologically advanced Stainless Steel spacer and dual sealing system on the market today.

• Has a stainless steel spacer rather than a standard metal spacer that won't rust or corrode
• Features Warm-Edge technology, meaning it insulates against better against extreme heat and cold
• Dual Seal system keeps out mold and condensation and is warranted against failure for 20 years
• Available only on dual high performance glass units (SmartGlass60™ and SmartGlass90™)
• Features Argon Gas fill for even greater thermal efficiency