The Deck-O-Seal 2812611 Deck-O-Drain PVC End Cap White is part of the Deck-O-Drain drainage system, which provides an effective drainage system for concrete pool decks. Wherever specified, the system effectively collects and carries water away quickly from pool decks and other patio areas. Made of tough, long lasting PVC, the Deck-O-Drain system resists wear and is non-corrosive. Both the deck and subgrade receive watertight protection when the completed system is properly installed.