The 38-Special series has been designed and manufactured with the same proven, packed bed design, proper carbon for the job and solid steel shell as the Original Can-Filter. With the exception of the carbon bed (wall) thickness the 38-Special is identical to the Original Can-Filter. The Original Can-Filter has a 2.5 inch carbon bed thickness. The 38-Special has a 2" carbon bed thickness. The 38-Special provides superior performance with higher air flow ratings, less weight, cheaper price and an effective contact time of .08 seconds in contact compared to competing brands.
See additional image for filter specs.