You asked for a PPS Cup, Lid and Liner that was smaller than our Standard size, but larger than the Mini. 3M is excited to offer the new Midi PPS – giving you the most comprehensive range of PPS size options for precise, accurate coverage. Ideal for two-panel repairs that require 13.5 fluid ounces of material or less. Case contains 25 Midi (400 mL or 13.5 oz) size lids with 125 Micron Filters. These are replacement lids which fit 3M PPS Midi Lids and Liners (PN 16312).