Cast Iron Threaded Fittings
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All Cast Iron Fittings are manufactured with the following standards:
•UL Listed, FM Approved
•ASTM A 126 Class B Standard Spec for Cupola Cast Iron
•ASTM A 153 Standard Spec for Zinc Coating (Hot Dip) on Iron and Steel
•ASTM B 16.4 Cast Iron Threaded Fittings Class 125
•ANSI/ASME Pipe Threads, General Purpose (NPT)