Racor has an interesting and informative FAQ section on their Website FAQ | racor-news (https://www.racornews.com/racor-faq)
One of the interesting questions and answers follows (quoted directly from Racor's Website).
My motorhome's Racor (Winn) Integrated fuel filter is (leaking, has a broken plastic cup, etc.), how can I fix it?
The Winn fuel is no longer in production and most replacement parts are no longer available. The recommended direct replacement is the Racor 790R30.