WHAT'S THE MOST IMPORTANT CONSIDERATION?

Flow Rate. The valve has to be able to provide sufficient water to adequately and quickly fill a bath. If the flow rate is too low, a bath can go cold while it’s still filling. Unfortunately a low pressure inlet will still result in a low pressure outlet – just make sure that the TMV you choose doesn’t further limit poor performance. Inta TMVs have the best flow rates on the market, and there is a marked difference in the performance of anti-scald valves from different manufacturers, so choose carefully.