UnderCover 17-20 Ford F-250/F-350 6.8ft Ultra Flex Bed Cover - Matte Black Finish

Total Access. Patented Security. Ultra Protection. The RealTruck® UnderCover® Ultra Flex hard-folding tonneau cover is built stronger and more durable, engineered for heavy-duty use with a sturdy, premium-grade matte black aluminum surface and a high-density polymer core. Its low-profile design sits nearly flush with the bed rails for a sleek appearance and up to 400 lbs. of weight capacity (evenly distributed). With ultra details, inside and out, the Ultra Flex’s underside looks just as good as its top. The smooth, matte black finish delivers a refined look, while the exclusive soft-impact underside adds a padded layer of protection for shifting cargo. The Ultra Flex fits tighter to keep water out. Upgraded seals and all-new tight-fit clamps provide state-of-the-art weather protection, keeping out water, dust, and debris—even in harsh conditions. Security is a hallmark of any high-end tonneau cover, and the Ultra Flex delivers. With a patented rail and clamp system featuring automatic slam latches, the cover automatically locks down every panel when closed to keep gear secure and out of sight—that’s patented security you can trust. The RealTruck UnderCover Ultra Flex hard-folding tonneau cover delivers 100 percent bed access—all the time. Simply fold the cover to the cab, secure it in place, and safely drive with the cover fully open. When closed, the slam latches reengage automatically. Installation is fast and straightforward with UnderCover’s all-new click-in design. The redesigned Tip-and-Click mounting system requires no tools, no hassle, and installs in under 30 minutes. Proven for extremes from Alaska to Florida, Ultra Flex has been tested in harsh conditions ranging from -40 to 180F and up to 95 percent humidity. It’s also been tested for 7,500 hours to reliably perform for over a decade of driving. Backed by a 5-year warranty, the Ultra Flex is tough enough for the job site, sleek enough for daily driving, and secure enough to protect what matters. UnderCover Ultra Flex 2017-2027 Ford F-250/350 6ft. 10in. Bed Std/Ext/Crew-Matte Black Finish Ultra Flex Tonneau Cover

• Hassle-Free Warranty: 5-year warranty supported by dedicated product experts and customer service team based in the USA
• Redesigned Tip-and-Click mounting system offers a simple, one-person installation in under 30 minutes
• Fits tighter to keep water out with upgraded seals and all-new tight-fit clamps
• Premium-grade matte black aluminum surface and high-density polymer core
• Proven for extremes from -40 to 180ºF and 95 percent humidity
• Exclusive soft-impact underside for superior cargo protection
• Patented rail and clamp system with automatic slam latches
• Low-profile design sits nearly flush with the bed rails
• Tested 7,500 hours for years of reliable performance
• Automatic slam latch system ensures easy operation
• Carpeted Underpanels Provide A Finished OEM Look
• Dual Action Tailgate Seal For Easy Operation
• 100 percent bed access - all the time
• Integrated Luminous Bed Rail Light
• Installation in 30 minutes or less
• Proudly assembled in Missouri
• Stylish Matte Black Finish
• Automatic Latching Panels
• Ultra Low Profile Design
• Weather Resistant
• Made In The USA
• 5 Year Warranty

The UnderCover Ultra Flex hard-folding tonneau cover, part number undUX22021, provides durable protection, dependable security, and full bed access for select 2017-2027 Ford F-250 and F-350 Super Duty trucks with a 6 ft. 10 in. bed. Its premium-grade matte black aluminum surface and high-density polymer core are engineered for heavy-duty use, while the low-profile design sits nearly flush with the bed rails for a clean, streamlined appearance. The cover supports up to 400 pounds when evenly distributed and is proudly assembled in Missouri.
A patented rail and clamp system with automatic slam latches secures every panel when the cover is closed, helping keep cargo protected and out of sight. Upgraded seals and tight-fit clamps create a closer fit to help block water, dust, and debris in demanding conditions. The soft-impact underside and carpeted underpanels add cargo protection while providing a finished, OEM-style appearance. A dual-action tailgate seal supports convenient operation, and the integrated luminous bed rail light improves visibility in the truck bed.
The UnderCover Ultra Flex delivers 100 percent bed access. Fold the panels toward the cab and secure them for safe driving with the cover fully open; when closed, the automatic latches reengage for added convenience. Installation is designed to be quick and straightforward using the redesigned Tip-and-Click mounting system, which requires no tools and can be completed by one person in 30 minutes or less. The cover has been tested for reliable operation in temperatures from -40 to 180 degrees Fahrenheit and up to 95 percent humidity, including 7,500 hours of durability testing. It is backed by a 5-year warranty and supported by a USA-based product expert and customer service team.

Features:

• 5-year warranty supported by a USA-based product expert and customer service team

• Redesigned Tip-and-Click mounting system enables one-person installation in 30 minutes or less

• Premium-grade matte black aluminum surface with a high-density polymer core

• Low-profile design sits nearly flush with the bed rails

• Patented rail and clamp system with automatic slam latches

• Upgraded seals and tight-fit clamps help keep out water, dust, and debris

• Soft-impact underside helps protect shifting cargo

• Carpeted underpanels provide a finished OEM-style appearance

• Dual-action tailgate seal supports easy operation

• 100 percent bed access when folded and secured near the cab

• Integrated luminous bed rail light improves cargo visibility

• Tested from -40 to 180 degrees Fahrenheit and up to 95 percent humidity

• Tested for 7,500 hours of reliable performance

• Supports up to 400 pounds when evenly distributed

• Proudly assembled in Missouri

• Made in the USA

Fitment:
Ford F-250 Super Duty King Ranch 2017
Ford F-250 Super Duty King Ranch 2018
Ford F-250 Super Duty King Ranch 2019
Ford F-250 Super Duty King Ranch 2020
Ford F-250 Super Duty King Ranch 2021
Ford F-250 Super Duty King Ranch 2022
Ford F-250 Super Duty King Ranch 2023
Ford F-250 Super Duty King Ranch 2024
Ford F-250 Super Duty King Ranch 2025
Ford F-250 Super Duty King Ranch 2026
Ford F-250 Super Duty Lariat 2017
Ford F-250 Super Duty Lariat 2018
Ford F-250 Super Duty Lariat 2019
Ford F-250 Super Duty Lariat 2020
Ford F-250 Super Duty Lariat 2021
Ford F-250 Super Duty Lariat 2022
Ford F-250 Super Duty Lariat 2023
Ford F-250 Super Duty Lariat 2024
Ford F-250 Super Duty Lariat 2025
Ford F-250 Super Duty Lariat 2026
Ford F-250 Super Duty Limited 2018
Ford F-250 Super Duty Limited 2019
Ford F-250 Super Duty Limited 2020
Ford F-250 Super Duty Limited 2021
Ford F-250 Super Duty Limited 2022
Ford F-250 Super Duty Limited 2023
Ford F-250 Super Duty Limited 2024
Ford F-250 Super Duty Platinum 2017
Ford F-250 Super Duty Platinum 2018
Ford F-250 Super Duty Platinum 2019
Ford F-250 Super Duty Platinum 2020
Ford F-250 Super Duty Platinum 2021
Ford F-250 Super Duty Platinum 2022
Ford F-250 Super Duty Platinum 2023
Ford F-250 Super Duty Platinum 2024
Ford F-250 Super Duty Platinum 2025
Ford F-250 Super Duty Platinum 2026
Ford F-250 Super Duty XL 2017
Ford F-250 Super Duty XL 2018
Ford F-250 Super Duty XL 2019
Ford F-250 Super Duty XL 2020
Ford F-250 Super Duty XL 2021
Ford F-250 Super Duty XL 2022
Ford F-250 Super Duty XL 2023
Ford F-250 Super Duty XL 2024
Ford F-250 Super Duty XL 2025
Ford F-250 Super Duty XL 2026
Ford F-250 Super Duty XLT 2017
Ford F-250 Super Duty XLT 2018
Ford F-250 Super Duty XLT 2019
Ford F-250 Super Duty XLT 2020
Ford F-250 Super Duty XLT 2021
Ford F-250 Super Duty XLT 2022
Ford F-250 Super Duty XLT 2023
Ford F-250 Super Duty XLT 2024
Ford F-250 Super Duty XLT 2025
Ford F-250 Super Duty XLT 2026
Ford F-350 Super Duty King Ranch 2017
Ford F-350 Super Duty King Ranch 2018
Ford F-350 Super Duty King Ranch 2019
Ford F-350 Super Duty King Ranch 2020
Ford F-350 Super Duty King Ranch 2021
Ford F-350 Super Duty King Ranch 2022
Ford F-350 Super Duty King Ranch 2023
Ford F-350 Super Duty King Ranch 2024
Ford F-350 Super Duty King Ranch 2025
Ford F-350 Super Duty King Ranch 2026
Ford F-350 Super Duty Lariat 2017
Ford F-350 Super Duty Lariat 2018
Ford F-350 Super Duty Lariat 2019
Ford F-350 Super Duty Lariat 2020
Ford F-350 Super Duty Lariat 2021
Ford F-350 Super Duty Lariat 2022
Ford F-350 Super Duty Lariat 2023
Ford F-350 Super Duty Lariat 2024
Ford F-350 Super Duty Lariat 2025
Ford F-350 Super Duty Lariat 2026
Ford F-350 Super Duty Limited 2018
Ford F-350 Super Duty Limited 2019
Ford F-350 Super Duty Limited 2020
Ford F-350 Super Duty Limited 2021
Ford F-350 Super Duty Limited 2022
Ford F-350 Super Duty Limited 2023
Ford F-350 Super Duty Limited 2024
Ford F-350 Super Duty Platinum 2017
Ford F-350 Super Duty Platinum 2018
Ford F-350 Super Duty Platinum 2019
Ford F-350 Super Duty Platinum 2020
Ford F-350 Super Duty Platinum 2021
Ford F-350 Super Duty Platinum 2022
Ford F-350 Super Duty Platinum 2023
Ford F-350 Super Duty Platinum 2024
Ford F-350 Super Duty Platinum 2025
Ford F-350 Super Duty Platinum 2026
Ford F-350 Super Duty XL 2017
Ford F-350 Super Duty XL 2018
Ford F-350 Super Duty XL 2019
Ford F-350 Super Duty XL 2020
Ford F-350 Super Duty XL 2021
Ford F-350 Super Duty XL 2022
Ford F-350 Super Duty XL 2023
Ford F-350 Super Duty XL 2024
Ford F-350 Super Duty XL 2025
Ford F-350 Super Duty XL 2026
Ford F-350 Super Duty XLT 2017
Ford F-350 Super Duty XLT 2018
Ford F-350 Super Duty XLT 2019
Ford F-350 Super Duty XLT 2020
Ford F-350 Super Duty XLT 2021
Ford F-350 Super Duty XLT 2022
Ford F-350 Super Duty XLT 2023
Ford F-350 Super Duty XLT 2024
Ford F-350 Super Duty XLT 2025
Ford F-350 Super Duty XLT 2026