Product Selection Guide STOREFRONTS - PRODUCT COMPARISON EFCO KAWNEER OLD CASTLE BUILDING ENVELOPE US ALUMINUM YES 40 FS (Center Set) Outside Glazed Storefront System - Trifab® 400 FG-1000 Series 400 YES 40 FI (Center Set) Outside Glazed Storefront System - - - - YES 45 FS (Center Set) Center Set Storefront System Series 401 (NT) Trifab® VG 450 FG-2000 Series 450 YES 45 FI (Center Set) Center Set Storefront System Series 402 (NT) Trifab® VG 451 FG-3000 Series 451 YES 45 TU (Center Set) Thermally Broken Storefront System Series 403 (T) Trifab® VG 451 T FG-3000T Multiplane Series IT 451 Thermal YES 45 TU (Front Set) Thermally Broken Storefront System Series 433 Trifab® VG 451 T FG-3000T Multiplane Series FT 451 Thermal YES 45 FT (Center Set) Thermally Broken Storefront System Series 403-I (TS) - - - XTherm Series 403X (T) Trifab® 451UT Series 3000 XT ArcticFront™ Series 45X YKK AP PRODUCT YES 45 XT (Center Set) High Performance Storefront System Featuring Dual Thermal Barriers Page-8 (Center Glazed) (Center Glazed) PS-1000-08 | Effective Date: April 28, 2020