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XTherm Series HX32 Single hung (tilt), FX32 Fixed
3 1/4" High Performance Thermal Single Hung (Tilt Sash) / Fixed Architectural Grade Window - NFRC CMA Approved
XTherm

Series 601 (T)<br>Series 6615 / 6740 Fixed (T)
3 7/8" Heavy Commercial Hung / Fixed Windows - NFRC CMA Approved
 

Series 660 (T)<br>Series 670 (T) <br>Series 6600 (T)
3 7/8" Heavy Commercial Hung / Fixed Windows - NFRC CMA Approved
 

Series 671 Impact Double Hung - Blast / DoD
3 7/8" Impact Double Hung Window - NFRC CMA Approved
X Force - Blast / DoDX Force - Impact

XTherm Series HX45 Double Hung, FX45 Fixed&nbsp;
4 1/2" High Performance Thermal, Hung / Fixed Architectural Grade Window - NFRC CMA Approved
XTherm
Series CH32 Commercial Single Hung Tilt (T), Series CD32 Commercial Double Hung Tilt (T), CF32 Commercial Fixed (T)<br/><br/>

3 1/4" Single Hung Tilt/ Double Hung Tilt / Fixed Windows - NFRC CMA Approved

 
Series 3450 (T) Series 3460 (T)
3 1/4" Single Hung Windows - NFRC CMA Approved




 
Series 672 (T) <BR>Series 6620 Fixed (TS)
3 7/8" Architectural Grade Double Hung / Fixed Windows
 
Series 680 SH/T (T)<BR>Series&nbsp;690 DH/T (T) <BR>Series 6600 Fixed (T)
3 7/8" Heavy Commercial Hung Tilt / Fixed Windows
 
Series 6621 Impact Fixed Window - Blast / DoD
3 7/8" Impact Fixed Window
X Force - Blast / DoDX Force - Impact
Series 663 Impact Single Hung - Blast / DoD
3 7/8" Impact Single Hung Window
X Force - Blast / DoDX Force - Impact
Series 676 DH (T)<BR>
4 1/2" Heavy Commercial Hung / Fixed Windows