Semroc Centering Rings Plywood BT-50 to BT-70(2pk) SEM-RA-58-70P
Lightweight plywood rings which center a BT-50 series tube inside a BT-70 series tube
ID= 0.976"
OD= 2.175"
Lite Plywood Thickness = 0.125"
Made in the USA
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