A high drainage capacity stainless steel bitumen letterbox parapet outlet for horizontal roof drainage systems. Factory-bonded membrane flange attached to the outlet allows for ease of installation.

For use with Bauder bituminous waterproofing membranes when used as a through chute in walls or parapets to external drainage via a hopper head and downpipe. The product is designed to be used in warm, cold, and inverted roof scenarios.  To be used in conjunction with the letterbox parapet outlet leaf guard.