Hy-Pro
Hy-Pro HP21L4-15ME
Industrial filter element
Hy-Pro HP21L4-15ME specifications
The Hy-Pro HP21L4-15ME is a 15µm nominal (β-rated, absolute 12µm) 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 EPR (Ethylene Propylene). Collapse pressure rating is 3000 PSID. 7 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: April 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
- 15µm nominal (β-rated, absolute 12µm)OEM-published
- Seal Material
- EPR (Ethylene Propylene)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
- DualglassG8 High-performance glass fiber media
- Collapse Rating
- 3000 PSID
- Max Operating Pressure
- 4000 psi (275 bar)
- Series
- High Pressure In-Line Filter Element (High Collapse)
Additional
- Filter Type
- Cartridge Element
- Element Length
- 4" (102 mm)
- Beta Ratio
- β12[C] ≥ 4000
- Max Temperature
- 225°F (107°C)
About the Hy-Pro HP21L4-15ME
Hy-Pro HP21L4-15ME is a filter element rated at 12 µm (15 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 Dualglass media and EPR (Ethylene Propylene) seals (Hy-Pro part number decoder).
What replaces the Hy-Pro HP21L4-15ME?
7 published cross-references on file. Select to expand.
What replaces the Hy-Pro HP21L4-15ME?
7 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 |
|---|---|---|
| SF9021-4-12UME | Swift Filters | Sourced |
| 934321Q | Parker | Verified |
| 934321 | Parker | Verified |
| HC9021FDT4JY806 | Pall | Verified |
| HC9021FCT4JY806 | Pall | Verified |
| HC9021FRT4JY806 | Pall | Verified |
| HC9021FHT4JY806 | Pall | Verified |
Application & Compatibility
The HY-PRO HP21L4-15ME is designed for use in hydraulic and lubrication filtration systems. With a 15µm nominal (β-rated, absolute 12µm) rating, this element is suitable for pump and component protection in industrial hydraulic circuits. EPR (Ethylene Propylene) 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 HP21L4-15ME?
What are the dimensions of the Hy-Pro HP21L4-15ME?
What seal material does the Hy-Pro HP21L4-15ME use?
Is there a cross-reference for the Hy-Pro HP21L4-15ME?
What is the collapse pressure rating of the Hy-Pro HP21L4-15ME?
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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