Robinair 17499 Heavy-Duty Vinyl Dust Cover for A/C RRR Machines Robinair's heavy-duty vinyl dust cover will protect your investment from the elements Fits Robinair AC1234-6, 34788NI, 34788NI-H, and 34988NI models Features corded seams for enhanced durability Snug fit ensures that the cover will stay on - even in windy conditions Black