Comparison : |
Item # 31128, 1/2 Inch (in) Nominal Inside Diameter (ID) Flange Item # 31129, 3/4 Inch (in) Nominal Inside Diameter (ID) Flange Item # 31130, 1 Inch (in) Nominal Inside Diameter (ID) Flange Item # 31131, 1-1/4 Inch (in) Nominal Inside Diameter (ID) Flange Item # 31132, 1-1/2 Inch (in) Nominal Inside Diameter (ID) Flange
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