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Equipment comparison

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4 differing fields and 5 shared fields across these references.

Equipment differences
CompareA · AR5Rolled Angle Flange Rings - Punched - 5" 5-1/8" 1 x 1 x 10gaB · AR4Rolled Angle Flange Rings - Punched - 4" 4-1/16" 1 x 1 x 10gaC · AR6Rolled Angle Flange Rings - Punched - 6" 6-1/8" 1-1/4 x 1-1/4 x 1/8
SizeDifferent5"4"6"
Flange profile dimensionsDifferent1 x 1 x 10ga1 x 1 x 10ga1-1/4 x 1-1/4 x 1/8
Inside diameter (ID)Different5-1/8"4-1/16"6-1/8"
Listed item weightDifferent.300 lb.850 lb1.10 lb
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SizeDifferent

AAR5: Rolled Angle Flange Rings - Punched - 5" 5-1/8" 1 x 1 x 10ga
5"
BAR4: Rolled Angle Flange Rings - Punched - 4" 4-1/16" 1 x 1 x 10ga
4"
CAR6: Rolled Angle Flange Rings - Punched - 6" 6-1/8" 1-1/4 x 1-1/4 x 1/8
6"

Flange profile dimensionsDifferent

AAR5: Rolled Angle Flange Rings - Punched - 5" 5-1/8" 1 x 1 x 10ga
1 x 1 x 10ga
BAR4: Rolled Angle Flange Rings - Punched - 4" 4-1/16" 1 x 1 x 10ga
1 x 1 x 10ga
CAR6: Rolled Angle Flange Rings - Punched - 6" 6-1/8" 1-1/4 x 1-1/4 x 1/8
1-1/4 x 1-1/4 x 1/8

Inside diameter (ID)Different

AAR5: Rolled Angle Flange Rings - Punched - 5" 5-1/8" 1 x 1 x 10ga
5-1/8"
BAR4: Rolled Angle Flange Rings - Punched - 4" 4-1/16" 1 x 1 x 10ga
4-1/16"
CAR6: Rolled Angle Flange Rings - Punched - 6" 6-1/8" 1-1/4 x 1-1/4 x 1/8
6-1/8"

Listed item weightDifferent

AAR5: Rolled Angle Flange Rings - Punched - 5" 5-1/8" 1 x 1 x 10ga
.300 lb
BAR4: Rolled Angle Flange Rings - Punched - 4" 4-1/16" 1 x 1 x 10ga
.850 lb
CAR6: Rolled Angle Flange Rings - Punched - 6" 6-1/8" 1-1/4 x 1-1/4 x 1/8
1.10 lb

Source: imported owner catalog, formatted October 7, 2026. A blank or differing catalog field is not a compatibility decision. Knopp confirms manufacturer, exact model, capacity, accessories, availability, freight and installation for the written quote.

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