Hy-Pro
Hy-Pro HP21SL4-40ME
HP21SL series filter element
Hy-Pro HP21SL4-40ME specifications
The Hy-Pro HP21SL4-40ME is a 40µm g8 dualglass filter element. It measures 1.735" OD x 1.025" ID x 4.45" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Ethylene Propylene (EPR), rated for -65°F to 300°F. Collapse pressure rating is 3000 PSID. Specifications verified. Last reviewed: May 2026
Physical fit
- Outer Diameter (O.D.)
- 1.735"OEM-published
- Inner Diameter (I.D.)
- 1.025"OEM-published
- Overall Length
- 4.45"OEM-published
- Micron Rating
- 40µmOEM-published
- Seal Material
- Ethylene Propylene (EPR)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
- G8 DualglassDualglass fiber media
- Collapse Rating
- 3000 PSID
- Max Operating Pressure
- 4000 psi (275 bar)
- Operating Temperature
- -65°F to 300°F
- Series
- HP21SL
Additional
- Filter Type
- Cartridge Element
- Element Length
- 4" (102 mm)
- Max Temperature
- 225°F (107°C)
About the Hy-Pro HP21SL4-40ME
Hy-Pro HP21SL4-40ME is a filter element rated at 40 µm (40 µm nominal), a beta ratio of β ≥ 4000, 3000 psid collapse pressure, and measuring 1.735 in OD, 1.025 in ID, and 4.45 in length. It uses G8 Dualglass media and Ethylene Propylene (EPR) seals, rated for -65 °F to 300 °F (Hy-Pro datasheet).
Application & Compatibility
The HY-PRO HP21SL4-40ME is designed for use in hydraulic and lubrication filtration systems. With a 40µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. Ethylene Propylene (EPR) 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.
Frequently Asked Questions
What micron rating is the Hy-Pro HP21SL4-40ME?
What are the dimensions of the Hy-Pro HP21SL4-40ME?
What seal material does the Hy-Pro HP21SL4-40ME use?
What is the collapse pressure rating of the Hy-Pro HP21SL4-40ME?
What is the operating temperature range for the Hy-Pro HP21SL4-40ME?
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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