Hy-Pro
Hy-Pro HP21SL8-15MB
- Micron
- 15µm nominal (β-rated, absolute 12µm)
- Media
- Dualglass
- O.D.
- 1.735"
- I.D.
- 1.025"
- Length
- 8.18"
- Seal
- Nitrile (Buna-N)
- Efficiency
- β4000
- Collapse
- 3000 PSID
Hy-Pro HP21SL8-15MB 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 8.18 in length. It uses Dualglass media and Nitrile (Buna-N) seals, rated for -45 °F to 225 °F (Hy-Pro HP21SL-P.pdf).
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7 verified cross-references — see what replaces this →- Part Number
- HP21SL8-15MB
- Manufacturer
- Hy-Pro
Hy-Pro HP21SL8-15MB specifications
The Hy-Pro HP21SL8-15MB is a 15µm nominal (β-rated, absolute 12µm) dualglass filter element. It measures 1.735" OD x 1.025" ID x 8.18" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Nitrile (Buna-N), rated for -45°F to 225°F. Collapse pressure rating is 3000 PSID. 7 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: May 2026
Performance
- Series
- HP21SL
- Media Type
- DualglassG8 High-performance glass fiber media
- Micron Rating
- 15µm nominal (β-rated, absolute 12µm)
- Max Operating Pressure
- 4000 psi (275 bar)
- Collapse Rating
- 3000 PSID
- Efficiency (ISO 16889)
- β4000
- Efficiency
- 99.97%
- Operating Temperature
- -45°F to 225°F
Dimensions
- Seal Material
- Nitrile (Buna-N)
- O.D. (inches)
- 1.735"
- I.D. (inches)
- 1.025"
- O.A.L. (inches)
- 8.18"
Additional
- Filter Type
- Cartridge Element
- Element Length
- 8" (203 mm)
- Beta Ratio
- β12[C] ≥ 4000
- Max Temperature
- 225°F (107°C)
What replaces the Hy-Pro HP21SL8-15MB?
7 verified cross-references on file. A cross-reference confirms dimensional fit and micron rating — not performance equivalence. Beta ratio, collapse rating, media, and service life can differ between brands.
| Part Number | Manufacturer | Match |
|---|---|---|
| HC9021FDT8HY923 | Pall | Verified |
| HC9021FMT8HY923 | Pall | Verified |
| HC9021FKT8HY923 | Pall | Verified |
| HC9021FUT8HY923 | Pall | Verified |
| HC9021FCT8HY923 | Pall | Verified |
| HC9021FHT8HY923 | Pall | Verified |
| HC9021FRT8HY923 | Pall | Verified |
Application & Compatibility
The HY-PRO HP21SL8-15MB 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. Nitrile (Buna-N) 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
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Is there a cross-reference for the Hy-Pro HP21SL8-15MB?
What is the collapse pressure rating of the Hy-Pro HP21SL8-15MB?
What is the operating temperature range for the Hy-Pro HP21SL8-15MB?
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