Finish a glass-railing channel run with a tidy, sealed ending instead of an open groove. The Flush End Cap for Channel Tubing (47-640/424) is shaped for the U-channel profile at the 42.4mm (1.67" OD) European standard and closes the open slot at the end of the run — the detail you want wherever a channel-mounted glass rail terminates on a balcony, terrace, stair, or pool deck. It does two things at once: it gives the run a clean close, and it keeps debris, water, and dust out of the open channel. Offered in 316 polished or satin stainless, it suits interior and exterior glass railings alike. Pair it with the matching channel direction fittings and splice in the same glass cap-rail line.