Carefree Slideout Cover Roller. The Slideout Cover combines worry-free, dependable protection, easy installation, dependable performance and elegant styling all at an affordable price. Automatically extends with your slide room. Built-in automatic roller lock prevents billowing. Helps keep leaves, dirt and debris off your slideout. Keeps your slide room cooler and cleaner. The Slideout Cover is an economical slideout awning that automatically extends with the slideout room to provide shade and protection, without breaking the bank! There is no need for manual locks or wind deflectors: Carefrees exclusive roller lock prevents billowing while in transit. The lock automatically engages when the room is closed and automatically unlocks when the room is deployed. The roller tube and mounting brackets are made of heavy-duty extruded aluminum for years of use and peace of mind while protecting your investment. The Slideout Cover is available in standard durable white vinyl and is finished with matching white mounting brackets and end caps. A beautiful slideout awning at an economical price. 42 inch extension. Roof size range: 138 inches to 145 inches; flange size range: 143 inches to 150 inches; fabric width 149 inches. Note: actual length of Slideout Cover (end cap to end cap) measures approximately 5 inches longer than the fabric width. Order roller and hardware kit separately.