all the MD spacers are the same (aside from thickness, 1/2" vs 5/16").... the Iso Therm is additional components and the MREV2 is the lower collector (bottom portion of plenum).

So if he is selling the size you want it will work for you - rev-up or non-rev-up, either way.

Even the MREV2 will work on either motor – it’s just more beneficial on the Rev-up…

 

oh okay. but i still need conformation on which to get. either iso thermal, copper, or basic? im thinking he is selling the basic.

 

Yeah sorry I am selling just the basic spacer.