


| Manufacturer | Part Number |
|---|---|
| American Meltblown | WN1S56 |
| Cardinal Process | W-UC-1-R-20-16S |
| Cardinal Process 2 | WE-UC-1-R-20-16S |
| Cardinal Process 3 | WWX-UC-1-R-20-16S |
| Delta Pure | DW-1-33-20-6-D |
| Facet | U1CU20S6 |
| Filter Factory | FNC1R20A |
| FilterCor | FCU1R20A |
| FiltraFine | WF-1C20S |
| Filtration Group | GCN1A20S |
| Fluid Filtration | U1R20A |
| FWI | CU1A20S |
| Mahle | 2EWVS1 |
| Matrix |
CN1A20S
AXCN1A20S XCN1A20S |
| Murdock | MWCN1A20S |
| Neo-Pure | WNC-25200-16 |
| Pall DFT | NC001AW20S |
| Pall Encore | 1NC20S |
| Parker | SWC1U20S |
| Parker Honeycomb | U39R20S |
| Parker XTL | XTL1U20S |
| PecoFacet | PFIU1R20A |
| Reco Filtration | WN1S56 |
| Serfilco | 01B20S |
| Shelco | MS20UG1 |
| United | UU1R20A |