3M™ 17379, Versaflo™ Length Adjusting Breathing Tube BT-30, 7100009685, 1 EA/Case 
Dynabrade 95684 1/4" Male Coupler 
Insize 4760-1120, 60? SQUARE, 4.7×3.1″, 6928640318177
$42.42
Made of hardened stainless steel.
4.7″ x 3.1″
60 Degree Square
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Insize 4142-200, GRANITE SQUARE WITH V GROOVE, 7.9×7.9×7.9″, 6928640375538
$2,894.53