Internormen
The Internormen 306581-25VG is a 25µm fiberglass (absolute) hydraulic filter element. It measures 3.735" OD x 2.19" ID x 13.06" long. Filtration efficiency is rated at β200 per ISO 16889. Seals are Nitrile (Buna-N), rated for -13°F to 250°F. 1 verified cross-reference is available from aftermarket manufacturers.
Need the Exact OEM Part?
We can source and ship Internormen filters directly.
Want a Verified Alternative?
Get an equivalent filter with the same specs at a better price.
Technical specifications for the Internormen 306581-25VG filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| Micron Rating | 25µm |
| Media Type | Fiberglass (Absolute) |
| O.D. (inches) | 3.735" |
| O.A.L. (inches) | 13.06" |
| Efficiency (ISO 16889) | β200 |
| I.D. (inches) | 2.19" |
| Seal Material | Nitrile (Buna-N) |
| Operating Temperature | -13°F to 250°F |
Last verified: February 2026
1 verified cross-reference available from Hy-Pro. All cross-references are reviewed for dimensional and performance compatibility.
| Manufacturer | Part Number | Confidence |
|---|---|---|
| Hy-Pro | Request part number | Verified |
Get specific part numbers for all 1 aftermarket cross-reference
Free cross-reference report. Usually within 24 hours.
Last verified: February 2026
The INTERNORMEN 306581-25VG is designed for use in hydraulic and lubrication filtration systems. With a 25µm 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.
250,000+ verified filter specifications
Quotes and answers within 24 hours
Real filtration specialists, not call centers