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Watts-BB-M101 Smart Volumetric Flow Monitor for BB-S101

Product Code BB-M101

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Smart Volumetric Flow Monitor

This Watts BB-M101 is a smart volumetric flow monitor that is included with BB-S101 whole home water system. It can also be retrofitted to Big Bubba(R) housing and BB-S100 whole home water system. It is certified to NSF/ANSI/CAN 61 for material safety and NSF/ANSI/CAN 372 for lead free compliance. This monitor sends email and SMS alerts when filter change is due. The monitor includes 1 IN FNPT inlet/outlet connections, a volumetric flow meter, and a 120V AC adapter.


  • Email and SMS notifications
  • Notification for filter change
  • Can be retrofitted to Big Bubba housing and BB-S100 whole home water system
  • 1 IN NPT flow meter