nVent CAT32HP Caddy CAT HP J-Hook (Pack of 50), 3.97 in² Area, 2" Diameter, Provides Superior Fill Capacity and Load Rating Over Most Other Non-Continuous Cable Support Alternatives

I’ve been down hospital corridors that had 4-6 j hooks in a stacked config, each LV group got their own lane. Spacing them close together helps with sag. I have 2 parallel runs of them in my attic down the “spine” of my house. Various Caddy HP models, they get smaller far away from the rack. Here is an example of one, but don’t buy them on Amazon, they are way overpriced. A local electrical wholesaler can order them for you. https://www.amazon.com/Diameter-Provides-Superior-Non-Continuous-Alternatives/dp/B01D40VEX4