SAME WORKING DAY DISPATCH!!! VAT RECEIPT PROVIDED ON REQUEST!!! The Drayton 0705174 TRV4 Chrome 15mm Valve with Lockshield is a stylish and durable heating accessory designed for central heating radiators. With its chrome finish, this valve adds a touch of elegance to any room while providing efficient control over the heating system. The angled design and lockshield feature ensure easy installation and maintenance, making it a practical choice for households looking to enhance their heating system.