The Kartell Design Twin Pack TRV in stylish anthracite is a premium angled thermostatic radiator valve pair, ideal for modern radiators and heated towel rails. Finished in a sleek modern anthracite gloss with durable brass construction, this 15mm angled TRV and lockshield set gives reliable temperature control and efficient room heating. Designed for pipework through wall or floor, it’s perfect as a heating accessory in UK homes and backed by a 5‑year guarantee.