Thank you for your question. The biggest difference between the Delta Linden Shower 1700 series (T17294-RB) and the 17T series is how the temperature is maintained for the user. When using the 1700 series, the temperature is controlled by the pressure in the water coming into the faucet. If the cold water suddenly gets turned down, like when someone flushes a toilet, then the hot water will also be turned down to avoid scalding.
The 17T series works thermostatically to maintain the temperature balance with 3 degrees of where you set the dial.
Date published: 2018-05-27