ANSUL High Pressure CO2 Systems ( Flange, 4 in., Weld Neck, w/Gasket, Bolts & Nuts ) Part Number : 426864 Material : Flange, 4 in., Weld Neck, w/Gasket, Bolts & Nuts Thread Size/Type: ………….. Weight (lbs): 46 Part Description: ………….. Tags: ANSUL High Pressure, Selector Valve Flanges