Compressor recommendations?

[Burdekin]

Does anyone know the difference between the fiac wrt30 and the wrt28 models?
The wrt30 has a higher cfm fad but seems to be the exact same compressor from all the info I have read.
I think that the wrt28 will be more than sufficient for me but now curiosity has gotten the better of me???

From the pics it looks like the 30 is a bigger pump so maybe runs slower for the similar CFM but puts out a larger FAD.

 

[not done it yet]

Does anyone know the difference between the fiac wrt30 and the wrt28 models?
The wrt30 has a higher cfm fad but seems to be the exact same compressor from all the info I have read.
I think that the wrt28 will be more than sufficient for me but now curiosity has gotten the better of me???

Sunbelt list the technical specification for both machines. About 10kg difference in weight and 0.2cfm displacement.

Maybe one has a cast iron cylinder or head? Maybe the support feet? Maybe different spec motors? Maybe a thicker receiver?

Ask them?