Coolant filter's

Has anyone used the inline coolant filters, the type that is basically screen filters? It doesn't seem like they would filter very much besides rocks. Is there a coolant filter like what are made for the diesels except would make sure "all" the coolant get's filtered? (The diesel coolant filters look like they would not flow enough.)

We used to put the kind that looks like an oil filter on a lot of cars when we did repair work in our shop. Engines that were perpetually rust cases such as 350 Olds, 318 Chryslers and some Ford engines. Cutting a heater hose and installing the filter only took a few minutes. What's interesting is that there was no need to flush or change the coolant which if you did would be rusty again immediately but just wait about a month or so and the coolant was clean again. Most of the time it took two filters, one would become filled with sediment pretty quickly within a couple of months but then the second one would last forever. We used the ones with the sacrificial anode inside.

Do you know if they still make the type you are talking about? I wanted a canister/ cartridge type filter. Like you say it will keep the radiator from clogging.