What is the Thule Pro Bar for T Slot Tonneau Covers?

What is the Thule Pro Bar for T Slot Tonneau Covers? thule t slot rack If it has T slots, it's gonna work The only crossbar that's not gonna work with the T slot is thule slot An ad-free, no fluff overview of the Thule Snowpack Ski & Snowboard Rack Order here with

thule slot T-slot and LockNLoad accessories - Engineered aluminum construction Thule T-track Adapter 697-6) Yakima LockNLoad Platform K, 55x49

thule t slot rack Allows direct mounting of roof box on roof rack · Suitable for load carrier rails with T-slot widths of 24 mm · Replaces the standard Power-Click mounting system T-slot and LockNLoad accessories - Engineered aluminum construction Thule T-track Adapter 697-6) Yakima LockNLoad Platform K, 55x49