The GR88 is a next-generation inward-opening aluminum window system designed for superior insulation, security, and weather performance. Engineered with a deep thermal break structure and multi-layer sealing technology, it provides outstanding resistance to air, water, and wind infiltration. This model is ideal for high-end residential and commercial applications requiring strength, comfort, and design flexibility.
🌀 Wind Resistance: Level 16 — compliant with Miami-Dade County hurricane and structural performance class
💧 Water Tightness: Level 6 | Air Tightness: Level 6 — AGWA / AS2047 certified for high-exposure environments
🌡️ Thermal Insulation: 1.6 W/㎡·K — NFRC Category A high-efficiency rating
🔇 Sound Insulation: 42 dB — WERS 6-Star acoustic rating
🔒 Safety Pressure: RC2 — approved under Florida DBPR high-wind and security standards
⚙️ Design Features: Deep-section frame for improved rigidity, dual compression seals, multi-point locking hardware, and hidden drainage design for complete weatherproofing and smooth operation.
The GR88 delivers the perfect balance of thermal comfort, acoustic control, and hurricane-grade strength, certified to global window performance standards.







Panora Windows and Doors LLC DBA Panora Luxury