Phillips #66 Expanded Flange Casing Bead is designed as a universal plaster stop used at wall terminations, door and window openings and intersections. This product protects edges from damage and helps cover shrinkage cracks. The expanded flange grounds 3/8″, 1/2″, 5/8″, 3/4″, 7/8″ or 1″ (1-1/4″ and 1-1/2″ special order, minimum quantities may apply). Phillips offers #66 Expanded Flange Square Casing in both galvanized steel or zinc. Also available with weep holes.