The Reina VLV-MDLBS Modal TRV - White Straight with Lockshield offers a stylish and functional solution for controlling your radiator's temperature. This pair includes a straight thermostatic radiator valve and a lockshield made from high-quality brass for durability and reliability. The non-bi-directional valves ensure smooth water flow and efficient heating control. The white finish suits modern or minimalist interiors and adds a sleek clean look to your heating system. The Reina Modal TRV delivers optimal performance and style for any space.