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This lightweight, spring-loaded emergency vent (pressure relief only) is used on aboveground storage tanks, as a code requirement, to help prevent the tank from becoming over-pressurized and possibly rupturing if ever exposed to fire.

Available Sizes:2" 8oz/sq.in.
3" 8oz/sq.in.
4" 8oz/sq.in.
6" 8oz/sq.in.
8" 8oz/sq.in.

$61.71$206.91