Thermwell Products AWS1537 15x21-37 Wind Screen
15-Inch x 21-Inch - 37-Inch Metal Rail Extension Window Screen. This is a bright, mesh screen. Wire extends from 19-Inch to 33-Inch. Galvanized rails, and varnished wood ends. Machine clamped into metal rails. Extra sturdy, tenoned corners keep screens square. Comes with zinc-plated nails.