DraftSeal DS 178AN Low-Rise Panic Threshold – 5” Wide x 49″ Long – Extruded AluminumDS 178AN 48 Ideal for use with vertical rod exit devices Extruded aluminum 1 4 high with 1 2 high lip for vertical rod panic latch Black neoprene insert Supplied pre drilled and countersunk Furnished with # 8 x 1 1 2 Quadrex drive screws and plastic anchors UL and cUL listed WHI listed for 90 minute fire rated assemblies KN Crowder architectural equivalent is CT72