Blower Relief Valve Vacuum Capabilities Pressure Preset Limit 83 in wc Outside Diameter 5 in Inlet Size 2 in Inlet Type NPT Compatible Manufacturer Part Number VFC100A-7W VFC100P-5T VFC200A-7W VFC200P-5T Compatible Grainger Part Number 4Z750 5F242 5JEN9 5JEP0 Maximum Operating Pressure 15 psi Minimum Operating Pressure 1 psi Overall Length 6.31 in