The PR is structured for quarterly and semiannual service of all the machines, and a CLIN for replacement parts ($4k). It's not broken down by machine type. All the machines are the same, that is, they all use the same type and number of filters and solvent. They are just different sizes and have different total solvent volumes (30, 40, and 48 gallons). They each require quarterly filter replacement and topping off of solvent to the appropriate operational level. The parts CLIN is to provide funding for any replacement parts needed (pumps, lights, hinges, hoses, etc.) other than filters and solvent, to keep the machines operational.