Products Windows Projected XTherm Series 450X, 450G SpecificationsCAD Details 4 1/2" Heavy Commercial Projected/ Casement / Fixed Flush-Face Window - NFRC CMA Approved XTherm Series 325X SpecificationsCAD Details3D Models 3 1/4" Heavy Commercial Projected / Casement / Fixed Flush-face Window - NFRC CMA Approved Series 590X Steel Replica SpecificationsCAD Details 3-1/4" Projected Window 3250i, 4250i-HP-XLT Hurricane Impact 3-7/8" and 4-7/8" Impact Window Series 2701 Impact - Blast / DoD SpecificationsCAD Details 2" Impact Fixed / Projected / Casement Windows Series 2700 (Thermal) SpecificationsCAD Details3D Models 2" Heavy Commercial Projected / Fixed Windows - NFRC CMA Approved Series 321X and 321G Impact - Blast / DoD SpecificationsCAD Details 3 1/4" Impact Fixed / Projected / Casement Windows - CMA Certified XTherm Series 2250i, 3250i, 4250i High Performance Thermal 2-1/2", 3-1/2", 4-1/2" Window XTherm Series 2250i, 3250i, 4250i-XLT "Historical" High Performance Thermal 2-7/8", 3-7/8", 4-7/8" Window INvent.PLUS Series 2250i, 3250i, 4250i-XP High Performance Thermal 3-11/16", 4-11/16", 5-11/16" Projected Window