Emergency Pressure Relief Vent (366) Female Thread Slimline


Slimline style is ideal for limited space applications. Heavy duty cast iron top and base with aluminum bases available. Machined top and base with a Buna N “O” Ring provide a vapor resistant  seal. 4″ or 6″ female NPT thread standard. Optional screen minimizes chances of theft or vandalism.


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    Installation & Maintenance

    Recommended Accessories:

    AST Overfill Prevention Valve
    AST Spill Containment Box
    AST Audible Alarm
    AST Sight Gauge