Sofima
The Sofima CH804RD21 is a 18µm stainless steel wire mesh hydraulic filter element. It measures 3.105" OD x 1.705" ID x 8.224" long. Seals are Nitrile (Buna), rated for -45°F to 225°F. Collapse pressure rating is 3000 PSID. 2 verified cross-references are available from aftermarket manufacturers.
Request a Quote
Request a quote for this filter element.
2 Cross-References Available
See which OEM filters this product replaces.
Technical specifications for the Sofima CH804RD21 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Performance | |
| Micron Rating | 18µm |
| Media Type | Stainless steel wire mesh |
| Collapse Rating | 3000 PSID |
| Operating Temperature | -45°F to 225°F |
| Dimensions | |
| O.D. (inches) | 3.105" |
| I.D. (inches) | 1.705" |
| O.A.L. (inches) | 8.224" |
| Seal Material | Nitrile (Buna) |
Last verified: February 2026
2 verified replacements available from Hy-Pro, Swift Filters
All cross-references are reviewed for dimensional and performance compatibility. Enter your info below to receive the full cross-reference report.
The SOFIMA CH804RD21 is designed for use in hydraulic and lubrication filtration systems. With a 18µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. Nitrile (Buna) seals provide compatibility with standard petroleum-based fluids and mineral oils.
The 3000 PSID collapse rating indicates the maximum differential pressure this element can withstand during cold starts or bypass conditions without structural failure. Ensure your system's maximum differential pressure does not exceed this rating.
We have 2 verified replacements on file. Enter your info and we'll send you the full cross-reference report within 24 hours.
352,000+ verified filter specifications
Quotes and answers within 24 hours
Real filtration specialists, not call centers