ZROADZ Noise Cancelling Wind Diffuser Black Aluminum for 50 Inch Curved Doubl… on July 18, 2026 July 18, 2026 Designed to work with most standard 50″ finned Curved Double Row LED light bars; For Straight LED light bar, see part number Z330050S. Position: Rear. Exterior: Black Black. Date First Available: January 19, 2016.