B-Line Eaton series Flextray wire basket tray, Used with threaded rod protector, Pregalvanized zinc finish, Steel, 20" center trapeze hanger

Yes, the FTB20CT carries a cULus Listing, which is what an inspector or a spec writer on a commercial electrical job will be looking for on cable tray support hardware.

No. This one is built for 20 inch tray, and at 23.56 inches long it won't match a narrower or wider basket correctly. Flextray hangers are width specific, so order the center trapeze hanger that matches your tray width.

Pre-galvanized steel is the standard indoor, dry-location finish. It's fine in conditioned interiors, mechanical rooms, and above ceilings. For exterior runs, wash-down areas, or corrosive process environments, pre-galvanized is the wrong choice and you want hot dip galvanized or stainless Flextray hardware instead.

It supports the tray from underneath at the middle of a trapeze span rather than clamping the tray edges. On a 20 inch Flextray run it keeps the basket bottom from sagging between supports and picks up the cable load at the center of the tray. You still need the trapeze itself, the rods, and the strut or channel; this piece is only the tray-to-trapeze connection.

Eaton B-Line part number FTB20CT, pre-galvanized steel. That's the number to put on a purchase order or cross against a submittal.

1.96 lb each. On a long run spaced at regular trapeze intervals that adds up, so include it when you tally the dead load on the rods, and order one per trapeze location rather than one per tray section.