Opens at 1/2 psi positive OR negative pressure! Allows your Mono Vault to breathe with changes in elevation, temperature, or weather induced changes in atmospheric pressure. Also equipped with a recessed manual release button. Flow rate capacity easily satisfies the industry standard 12% of internal container volume per minute for any Mono Vault. Installs in 1.02" diameter hole. Supplied with O-ring seal under face and backing nut. Made in USA.
We will install your Vault Valve for FREE if purchased along with a Mono Vault. All factory installed Vault Valves are installed centered on the lid.
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