Honeywell VT15 Traditional Thermostatic Radiator Valve The Honeywell VT15 Thermostatic Radiator Valve has an easy to grip TRV head and bold black on white numbering making it popular with users with impaired dexterity and/or impaired vision. Primarily designed for the contract market but is equally suitable for the domestic market. Features and Benefits: 15mm Contract Thermostatic Radiator Valve (TRV) Bi-Directional Flow Design Integrated Radiator Balancing Insert Can be Mounted Vertically or Horizontally Positive Shut Off Approved to EN215 Height: 200mm Width: 290mm Depth: 370mm Manufacturers 1 Year Guarantee