Kit contains 50 disposable lids with 200 micron filters, 50 liners, and 20 sealing plugs. The 200 micron filters are recommended for traditional solvent based paint or primer applications. Note: mix ratio insert sold separately. For use with part number 16115 or 16121 - H/O pressure cup - . Designed to comply with EPA Rule 40 CFR Part 63 Subpart 6H.