Straight Anthracite Valves for Radiators & Towel Rails (Pair) - Suitable for Installation of your Heated Towel Rail or Radiator onto your central heating system : Amazon.co.uk: Home & Kitchen
1-1/2″ (FIP x Male Union) Steam Straight Radiator Valve – Craft Supply
Amazon.com: Inline Straight Chrome Radiator Valves Set Pack 1/2" BSP European Thread 15mm Inlet + Lockshield : Industrial & Scientific