The MainGuard #78 Blow-Off installs underground in a standard meter box. Designed and engineered specifically for flushing, the #78 provides excellent flow rates for improving chlorine residual levels and flushing disinfection byproducts (DBPs) to keep water safe for consumers. Its unique valve design allows for a full clear-channel flow that is superior to other blow-offs for moving water and passing debris easily.
- Below-grade blow-off for dead end water mains
- Installs below ground inside a standard meter box
- Unique two-pipe design allows for easy passage of debris
- Self-draining, non-freezing, and fully serviceable from above ground
Inlet Connection | FEMALE IRON PIPE THREAD |
Features | Below-grade blow-off for dead end water mains. Installs below ground inside a standard meter box. Unique two-pipe design allows for easy passage of debris. Self-draining, non-freezing, and fully serviceable from above ground. |
Outlet Size (IN) | 2-1/2 |
Inlet Size (IN) | 2 |
Above or Below Ground | BELOW GROUND |
Outlet Connection | MALE NATIONAL STANDARD THREAD |
Certifications | NSF/ANSI 372 |