apart from Micro-Trains is there any other manufactuar of said couplers because tey dont seem to fit certain equipment?[?]
I assume when you say Mirco-Trains (MT), you are inquiring about N-scale couplers?
If so, then Accumate couplers will couple with MT’s. I’m not sure about Kato or MDC’s - but they are not as common.
The only incompatible coupler style is Rapido – which is not a knuckle style coupler. This was the common coupler in N-scale until a few years ago. They are still around but are slowly (and thankfully) going away.
The majority of the N Scalers I know just switch out the old truck/coupler with the MT truck/coupler.Oddly this includes the Atlas truck/coupler as well…I also model in N Scale and I found it best just to switch out the truck/couplers.Also different cars takes different size coupler shanks as well so,its not one size fits all.