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NIRON® Backing Ring, Back-Up Ring Fitting, 4 in, Iron, Ductile Iron Material Construction, Polypropylene, 0.79 in Height, For Use With: 4 in Stub Flange, Additional Information: 5.83 in ID x 9 in OD, 3/4 in Dia Hole, 8 Holes, ANSI Class 150 Hole Pattern
NIRON® Backing Ring, Back-Up Ring Fitting, 4 in, Iron, Ductile Iron Material Construction, Polypropylene, 0.79 in Height, For Use With: 4 in Stub Flange, Additional Information: 5.83 in ID x 9 in OD, 3/4 in Dia Hole, 8 Holes, ANSI Class 150 Hole Pattern