15mm with a 10mm Reducing kit included. (10mm Reducing Kit). Simple Installation. Adjustable Tail Piece.
Gold Premium 15mm Straight Full Chrome TRV Thermostatic Radiator Valve 15mm
Elegance 15mm Straight Chrome White TRV Thermostatic Radiator Valve 15mm
1 Thermostatic Radiator Valve 15mm X 3/4 Angle Radiator 5 Temperature Levels
ANTIQUE COPPER THERMOSTATIC RADIATOR VALVE 15MM ANGLED TRV LOCKSHIELD TWIN PACK
ANTIQUE BRASS THERMOSTATIC RADIATOR VALVE 15MM ANGLED TRV LOCKSHIELD TWIN PACK
