On the TDI website, one of the members is selling an improved CCV unit. It uses media cut from the material floor scrubber pads are made of. It seems to be a better filter than the SOS pads used in the homemade version.

__________________
Jeff

79 300D Euro 4 spd 196K
01 Jetta GLS TDI, 5 spd
04.5 Dodge 3500 Cummins, 6 speed
93 Dodge 250 Cummins, Auto