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These are 3M PPS 2.0 adapters for paint guns. Without knowing the thread diameter and pitch, it’s not possible to identify exactly. Obtain those measurements and refer to the chart on the left side of page 4 for the exact prt number.
Bounty: $6.00
Posted By: HelpIdentify
I'd Like to Know:
I would like to know what make and model this will fit. Please use a reference link
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    These are 3M PPS 2.0 adapters for paint guns. Without knowing the thread diameter and pitch, it’s not possible to identify exactly. Obtain those measurements and refer to the chart on the left side of page 4 for the exact prt number.
References:
https://multimedia.3m.com/mws/media/1451272O/pps-2-0-spray-cup-system-part-nu...
By: colindoyle Submitted on: 06/03/2019 at 06:47PM
    Accepted