This Drayton Push Fit Elbow is chrome plated brass, designed to match Drayton TRVs. It comes with an 18-month warranty. The Drayton Thermostatic Radiator Valve range includes accessories like replacement thermostatic heads, lockshield valves, and push-fit elbows. Drayton manufactures TRVs and a complete line of accessories, including replacement thermostatic heads, lockshield valves, and push-fit elbows.