
Watts (BB-NUT) Big Bubba BBH Nut; Black
| Manufacturer | Watts |
| Model Number | BB-NUT (BBH Nut) |
| Color | Black |
| Component Type | Cap Nut / Threaded Closure |
| Assembly Reference | Part #21 (Big Bubba Diagram) |
| Material | Durable Plastic Composite |
| Thread Type | Standard Big Bubba Threading |
This cap nut is engineered for use with Watts Big Bubba whole house filter housings, including both 10-inch and 20-inch models. It threads onto the housing head to secure the sump and maintain system pressure integrity. Compatible with standard Big Bubba configurations used in residential and light commercial whole house filtration applications. Verify part compatibility by referencing the Big Bubba assembly diagram where this component is identified as part #21.
| Manufacturer | Watts |
| Model Number | BB-NUT (BBH Nut) |
| Color | Black |
| Component Type | Cap Nut / Threaded Closure |
| Assembly Reference | Part #21 (Big Bubba Diagram) |
| Material | Durable Plastic Composite |
| Thread Type | Standard Big Bubba Threading |
This cap nut is engineered for use with Watts Big Bubba whole house filter housings, including both 10-inch and 20-inch models. It threads onto the housing head to secure the sump and maintain system pressure integrity. Compatible with standard Big Bubba configurations used in residential and light commercial whole house filtration applications. Verify part compatibility by referencing the Big Bubba assembly diagram where this component is identified as part #21.
Original: $12.29
-65%$12.29
$4.30Description
| Manufacturer | Watts |
| Model Number | BB-NUT (BBH Nut) |
| Color | Black |
| Component Type | Cap Nut / Threaded Closure |
| Assembly Reference | Part #21 (Big Bubba Diagram) |
| Material | Durable Plastic Composite |
| Thread Type | Standard Big Bubba Threading |
This cap nut is engineered for use with Watts Big Bubba whole house filter housings, including both 10-inch and 20-inch models. It threads onto the housing head to secure the sump and maintain system pressure integrity. Compatible with standard Big Bubba configurations used in residential and light commercial whole house filtration applications. Verify part compatibility by referencing the Big Bubba assembly diagram where this component is identified as part #21.














