Hy-Pro

Hy-Pro HPTX4L21-3MB

Name: Hy-Pro HPTX4L21-3MB
Brand: Hy-Pro
SKU: HPTX4L21-3MB

The Hy-Pro HPTX4L21-3MB is a 5µm dualglass hydraulic filter element. It measures 7.95" OD x 0.56" ID x 21.46" long. Filtration efficiency is rated at β4000 per ISO 16889. Seals are Nitrile (Buna-N). 15 verified cross-references are available from aftermarket manufacturers.

5µmDualglassNitrile (Buna-N)

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Part NumberHPTX4L21-3MB

ManufacturerHy-Pro

CategoryHydraulic

What are the specifications of the Hy-Pro HPTX4L21-3MB?

Technical specifications for the Hy-Pro HPTX4L21-3MB filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.

Specification	Value
O.A.L. (inches)	21.46"
Micron Rating	5µm
Media Type	Dualglass
Efficiency (ISO 16889)	β4000
O.D. (inches)	7.95"
I.D. (inches)	0.56"
Seal Material	Nitrile (Buna-N)

Last verified: February 2026

What replaces the Hy-Pro HPTX4L21-3MB?

15 verified cross-references available from Finn, Parker, Fairey Arlon, MP Filtri, Sofima. All cross-references are reviewed for dimensional and performance compatibility.

Aftermarket Replacements

Manufacturer	Part Number	Confidence
Finn	Request part number	Verified
Finn	Request part number	Verified
Parker	Request part number	Verified
Fairey Arlon	Request part number	Verified

Application & Compatibility

The HY-PRO HPTX4L21-3MB is designed for use in hydraulic and lubrication filtration systems. With a 5µm rating, this element is suitable for servo valve protection and high-precision hydraulic systems. Nitrile (Buna-N) seals provide compatibility with standard petroleum-based fluids and mineral oils.

Frequently Asked Questions

What micron rating is the Hy-Pro HPTX4L21-3MB?

The Hy-Pro HPTX4L21-3MB has a 5µm micron rating with dualglass filter media, rated at β4000 per ISO 16889.

What are the dimensions of the Hy-Pro HPTX4L21-3MB?

The Hy-Pro HPTX4L21-3MB measures 7.95" OD, 0.56" ID, 21.46" overall length.

What seal material does the Hy-Pro HPTX4L21-3MB use?

The Hy-Pro HPTX4L21-3MB uses Nitrile (Buna-N) seals.

Is there a cross-reference for the Hy-Pro HPTX4L21-3MB?

Yes. There are 15 verified cross-references for the Hy-Pro HPTX4L21-3MB from manufacturers including Finn, Parker, Fairey Arlon, MP Filtri. Contact VerifiedFilters for specific part numbers and availability.

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