I am in the process of refreshing everything under the dash - heater core, ducting, blower motor, etc. And I made a discovery.
It appears someone has modded the existing Air Con box to fit two filter elements. Only problem is, they are nothing like the ones Nissan actually used later on in the Stagea. I have also verified that the air con box is period correct for the car.
I have been scouring the internet (and this site) trying to find information on their replacement, but NOTHING. There are no distinguishing markings on the filters.
The bottom one was secured with a screw in the bottom, and there was a metal clip holding the two together. The bottom one is removed first, then the top slides downwards and out.
The elements were DISGUSTING! I tried to clean them, and they fell apart. Still... nothing is probably safer than the festy things that were there.
Any info is greatly appreciated... I don't even know where to begin. But I would like to replace them.