This K.Therm Style comes in a x12 quantity bundle, TRV Thermostatic 15mm Angled Radiator Valve and Lockshield in white is a high-quality addition to any central heating system. This multi-positional valve allows for variable heat settings and is compatible with both horizontal and vertical radiators. Made from brass and chrome, this unit has a manufacturer warranty of 5 years and is designed for easy installation on the wall. With timer control and smart home compatibility with Kartell, this radiator valve offers both style and functionality for efficient heating in your home. If you want to buying a large quantity we will give you very good discount not only TRV all Heating and Plumbing products .