Trex RainEscape Trex 4 in. x 4 in. RainEscape Post Flashing Deck Drainage System

Trex RainEscape is a unique under-deck drainage system that uses a network of troughs and downspout construction to keep rain, spills, and snowmelt from dripping through elevated deck boards. It creates a dry space below the deck. The 4" x 4" Post Flash is a polyethylene boot that seals around the post railing when installing the Trex RainEscape Deck Drainage System.