| Date | Grid | Clue | Author | Editor |
|---|---|---|---|---|
| Tue, May 21, 2024 | 26D | Purifying filter acronym | Zachary David Levy | Fagliano |
| Fri, May 03, 2024 | 34A | Filter acronym | Eli Cotham | Fagliano |
| Sun, Dec 31, 2023 | 59A | Big acronym in purifying filters | Matt Linzer and Rafael Musa | Shortz |