This fitting easily knocks into standard 1" pipes and features a self-leveling design for out-of-square pipes. The large flange helps to camouflage pipe and surface construction variations, making it a great option for remodels or new construction. The fitting is made from engineered polymer UV-resistant ABS material and is available in four different orifice sizes (1", ¾", ½", slotted). Plus, it's made in the USA, ensuring its quality and durability.