Hy-Pro
Hy-Pro HP904L8-1AV
HP904L series filter element
Hy-Pro HP904L8-1AV specifications
The Hy-Pro HP904L8-1AV is a 1µm nominal (β-rated, absolute 3µm) water absorptive filter element. It measures 2.8" OD x 1.61" ID x 8.2" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Fluorocarbon (Viton), rated for -20°F to 400°F. Collapse pressure rating is 150 PSID. 2 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: May 2026
Physical fit
- Outer Diameter (O.D.)
- 2.8"OEM-published
- Inner Diameter (I.D.)
- 1.61"OEM-published
- Overall Length
- 8.2"OEM-published
- Micron Rating
- 1µm nominal (β-rated, absolute 3µm)OEM-published
- Seal Material
- Fluorocarbon (Viton)OEM-published
- Connection / Thread
- Not yet verified from an OEM source
Performance: Hy-Pro published values
These are Hy-Pro's own published numbers. Performance specs differ by brand and are never inherited across cross-references.
- Efficiency (ISO 16889)
- β4000
- Efficiency
- 99.97%
- Media Type
- Water AbsorptiveGlass fiber w/water removal media
- Collapse Rating
- 150 PSID
- Operating Temperature
- -20°F to 400°F
- Series
- HP904L
About the Hy-Pro HP904L8-1AV
Hy-Pro HP904L8-1AV is a filter element rated at 3 µm (1 µm nominal), a beta ratio of β ≥ 4000, 150 psid collapse pressure, and measuring 2.8 in OD, 1.61 in ID, and 8.2 in length. It uses Water Absorptive media and Fluorocarbon (Viton) seals, rated for -20 °F to 400 °F (Hy-Pro datasheet).
What replaces the Hy-Pro HP904L8-1AV?
2 published cross-references on file. Select to expand.
What replaces the Hy-Pro HP904L8-1AV?
2 published cross-references on file. Select to expand.
A cross-reference confirms dimensional fit and micron rating, not performance equivalence. Beta ratio, collapse rating, media, and service life can differ between brands.
Published cross-references
| Part Number | Manufacturer | Match |
|---|---|---|
| HC9104FLZ8Z | Pall | Verified |
| 05-3425 | FilterMart | Sourced |
Application & Compatibility
The HY-PRO HP904L8-1AV is designed for use in hydraulic and lubrication filtration systems. With a 1µm nominal (β-rated, absolute 3µm) rating, this element is suitable for proportional valve protection and general hydraulic systems. Fluorocarbon (Viton) seals provide compatibility with petroleum-based fluids, synthetic fluids, phosphate esters, and water-glycol mixtures.
The 150 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.
Frequently Asked Questions
What micron rating is the Hy-Pro HP904L8-1AV?
What are the dimensions of the Hy-Pro HP904L8-1AV?
What seal material does the Hy-Pro HP904L8-1AV use?
Is there a cross-reference for the Hy-Pro HP904L8-1AV?
What is the collapse pressure rating of the Hy-Pro HP904L8-1AV?
What is the operating temperature range for the Hy-Pro HP904L8-1AV?
How this entry is verified
Every specification on this page names its source: manufacturer documents first, distributor catalogs second, decoded part-number patterns labeled as such. When a value has not been verified from an OEM source, the cell says so. Cross-references are fit claims, never performance claims.
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