The Acudor FC Series aluminum floor doors are designed for interior and exterior applications where watertightness is required. This door is designed for off-street locations that may occasionally receive AASHTO H-20-44 wheel loads. The channel frame construction with 1 1/2" drainage coupling and integral anchor flange is designed to be cast into concrete. The diamond plate door panel is equipped with a flush aluminum drop handle and an automatic hold open arm with red vinyl grip.