Viessmann Differential Pressure Sensor For Vitodens 200 Wb2/Wb2A Series Boilers. Compatible with Vitodens 200 WB2 6-24C/6-24/8-32 Series Residential Wall-Mounted Gas-Fired Condensing Boilers Compatible with Vitodens 200 WB2A 6-24C/6-24/8-32 Series Residential Wall-Mounted Gas-Fired Condensing Boilers Compatible with Vitodens 200 WB2 11-44/15-60 Series Residential Wall-Mounted Gas-Fired Condensing Boilers Any adjustments installations service or maintenance must be completed by a licensed professional heating contractor who is qualified to work with hot water boilers Give the manufacturer the 16-digit boiler serial number or the 12-digit ASME/NB serial number to ensure a proper fit Package Contents: Viessmann 7822897 Differential Pressure Sensor For Vitodens 200 Wb2/Wb2A Series Boilers Viessmann 7822897: Differential Pressure Sensor For Vitodens 200 Wb2/Wb2A Series Boilers