Vibrant 10231 Union Adapter Fitting; Size 4 AN x -4 AN Flare Union

Vibrant 10231 Fitting, Straight Coupler, Union Adapter, Male -4 AN to Male -4 AN

Vibrant 10231 Union Adapter Fitting; Size 4 AN x -4 AN - Anodized Black Only

Vibrant -4AN to -4AN Straight Union Adapter Fitting - Aluminum

Vibrant Performance AN Fitting Universal