The site doesn't give specific answers. I found the Z-101 pdf for the Flexicolor SM chemicals, which states that the 12 liter kit can process 900 rolls of 135-36 film. If this is correct, then it would be around 75 rolls per liter, if I am reading this correctly. I do not know if this is replenished or not, or if the PF kit is the SM kit. Kodak doesn't get as user friendly with it's C41 info as it does with the B&W. I want to process my own C41 8x10 film, but not if it is cheaper to take it to the last lab in Miami. Since I have never bought this stuff before, I just wanted some answers.