The Drayton Drain-off tap is ideal for use on domestic radiators and towel rails. The tap has a chrome finish that matches the TRV4 body. Drayton supplies a full range of accessories such as replacement thermostatic heads, lockshield valves and push-fit elbows. The Drayton 15mm Drain-Off Tail Piece is a radiator valve accessory designed to simplify draining of domestic radiators and towel rails. Key features include: 15mm compression connection, compatible with standard radiator pipework, Chrome-plated brass construction, offering durability and corrosion resistance, Integrated drain-off tap, enabling easy system maintenance without removing valves, Matches TRV4 valve bodies, ensuring a coordinated and professional finish, Compact dimensions (approx. 56mm width × 31mm height), ideal for tight spaces, Maximum working pressure of 10 bar, suitable for typical domestic heating systems. A practical and installer-friendly component for clean and efficient radiator servicing.