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| CIVACON Model SV Manhole Cover |
- Emergency venting of 375000 CFH at 6.25 PSI.
- 10" PAF opens at 3.63 PSI
- PV vent sets to open at 1 PSI & Vavuum at 6 OZ/SQ inch
- Complete rollover protection
- Heavy 7 gauge steel design-tested to 35 PSI
- Mountings for VR Adaptor & sensor
- Clamp ring for easy installation
- Dot 406 specs met
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