Chevy & GMC HD 6.9′ Bed 2500/3500 (does not fit with factory side storage boxes) - Truck Access Plus
Incredible Tonneau Cover for Under $200 | 2019-2022 Chevy Silverado & GMC Sierra - YouTube
2020-2022 Silverado/Sierra 2500HD/3500HD 6.9′ Bed Hard Roll Up Cover Truxedo Sentry CT - Truck Access Plus
Amazon.com: OEDRO Soft Roll Up Truck Bed Tonneau Cover Compatible with 2020 2021 2022 2023 2024 Chevrolet Silverado/GMC Sierra 2500 3500 HD, Fleetside 6.9 Feet Bed : Automotive
6.8FT Soft Roll Up Bed Tonneau Cover For 2020-2022 Silverado Sierra 2500 3500HD | eBay
Retraxpro MX Retractable Truck Bed Tonneau Cover | 80485 | Compatible with 2020-2022 Chevy/GMC Silverado/Sierra 2500/3500Hd (Does Not Fit W/ Factory Side Storage Boxes) 8' 2" Bed (98.2") - Walmart.com
Amazon.com: LEER HF650M | Fits 2020-2022 GM Chevy Silverado/GMC Sierra Heavy Duty 2500/3500 with 6.9 FT Bed | Hard, Quad-Folding, Low Profile Tonneau Cover | SKU 650320 : Automotive