Product Selection Guide ENTRANCES - PRODUCT COMPARISON EFCO KAWNEER OLD CASTLE BUILDING ENVELOPE US ALUMINUM Model 50H Impact Resistant & Blast Mitigating Entrance for Monolithic and Insulating Glass D500 Impact 500 Heavy Wall™ IR MSD-375 Impact IG 500/600 Model 35HL Impact Resistant & Blast Mitigating Entrance for Monolithic and Insulating Glass D300 Impact 350 IR - DH-350 Model 50HL Impact Resistant & Blast Mitigating Entrance for Monolithic and Insulating Glass D500 Impact 500 IR - - YKK AP PRODUCT Page-6 PS-1000-08 | Effective Date: April 28, 2020