This transom drain plug fits flush on a boat's transom or exterior, allowing water to drain when boat is trailered to prevent moisture build-up and rot damage.

Celcon pipe plug has screwdriver slot. Natural color nylon tube will not bend, rot or mildew. Tube flange has 3 recessed holes for flush fastener heads on transom, secured with #8 fasteners or rivets. Rubber O-ring makes unit watertight.