The WA31L-APC/TO Volume Control Trim with a Lever Handle and a Square Trim is from the ROHL Modern Collection Wave Series. It is a great addition to a modern styled shower system. It comes with a sliding escutcheon with a bell housing. Please secure an order of a rough-in valve (ZA33BO) if planning to purchase this product. The WA31L-APC/TO in Polished Chrome is also available in satin nickel finish. These premier finishes will resist corrosion and tarnishing through everyday use. Rohl offers a limited lifetime warranty for this. ROHL is committed to offering a full spectrum of exclusive design styles without compromising products durability and safety of its customers. For the product's measurements, please see the specification sheet.