Want to Buy WTB: Hex Cell Diffuser for Beseler Dual Dichro S head.

I'm looking for the little square box looking thing that goes under the lamp on the other side of the base. It looks like a little square box about 2" long and wide and has hex cell honecomb material in it.

This one is for the non-s model, i dont want this one, this is just to give you the idea.

This is a picture of the "non-S" one, the S model's diffuser is larger.