Blower Relief Valve, Vacuum Capabilities Vacuum, Preset Limit 42 in wc, Outside Diameter 1.5 in, Inlet Size 1 1/2 in, Inlet Type NPT, Inlet Gender Female, Compatible Manufacturer Part Number VFC400A-7W, VFC400P-5T, VFZ401A-5W, VFZ401A-7W, Compatible Grainger Part Number 4Z751, 4Z752, 53WC07, 53WC08, Overall Length 6.25 in Valve is required for use with Regenerative Blowers in all vacuum applications.
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