Bolted Bulkhead Tank Flange Fitting Material Polypropylene Fitting Material Finish Glass Reinforced Fitting Material Grade Not Applicable For Tank Shape Curved Flat Gasket Material EPDM Inside Connection Gender Female Inside Connection Size 1 in Inside Connection Type NPT Maximum Operating Pressure 150 psi Maximum Operating Temperature 150 Degrees F Minimum Operating Temperature -20 Degrees F Number of Bolt Holes 4 Outside Connection Gender Female Outside Connection Size 1 in