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 ROUND CARBON FIBER WINDOW BEZEL KIT (PART # CBK)
4" I.D. , 5 1/2" O.D., overall height is 1/4".  Made to fit 1/8",  Lexan window with a 4 1/4" I.D. beveled hole.
comes with 6/32 mounting hardware
Part # CBK = (1pr.)
 
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