EMERGENCY TANK VENT 4" MALE NPT


Slim line style is ideal for limited space applications. Heavy-duty cast-iron top and base with aluminum bases available.Machined top and base with Buna-o Ring provide a vapor resistant seal. 4", 5" and 6" male NPT thread standard. Optional screen minimizes chances of theft or vandalism. Pressure relief set at <0.5 PSI.