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Hy-Pro

Hy-Pro HP21L4-15WB

Verified SourceAbsolute Rated
OD 1.735"L 4.45"ID 1.025"
Dimensional schematic
Micron
15µm
Media
Wire Mesh
O.D.
1.735"
I.D.
1.025"
Length
4.45"
Seal
Nitrile (Buna)
Efficiency
β200
Collapse
3000 PSID

Hy-Pro HP21L4-15WB is a filter element rated at 15 µm (15 µm nominal), a beta ratio of β ≥ 200, 3000 psid collapse pressure, and measuring 1.735 in OD, 1.025 in ID, and 4.45 in length. It uses Wire Mesh media and Nitrile (Buna) seals, rated for -45 °F to 225 °F (Hy-Pro part number decoder).

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Part Number
HP21L4-15WB
Manufacturer
Hy-Pro

Hy-Pro HP21L4-15WB specifications

The Hy-Pro HP21L4-15WB is a 15µm wire mesh filter element. It measures 1.735" OD x 1.025" ID x 4.45" long. Filtration efficiency is rated at β200 per ISO 16889. Seals are Nitrile (Buna), rated for -45°F to 225°F. Collapse pressure rating is 3000 PSID. Specifications verified. Last reviewed: May 2026

Performance

Series
HP21L
Max Operating Pressure
4000 psi (275 bar)
Collapse Rating
3000 PSID
Micron Rating
15µm
Media Type
Wire MeshStainless steel wire mesh
Efficiency (ISO 16889)
β200
Operating Temperature
-45°F to 225°F

Dimensions

Seal Material
Nitrile (Buna)
O.D. (inches)
1.735"
I.D. (inches)
1.025"
O.A.L. (inches)
4.45"

Additional

Filter Type
Cartridge Element
Element Length
4" (102 mm)
Max Temperature
225°F (107°C)

Application & Compatibility

The HY-PRO HP21L4-15WB is designed for use in hydraulic and lubrication filtration systems. With a 15µm rating, this element is suitable for proportional valve protection and general hydraulic systems. Nitrile (Buna) 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 HP21L4-15WB?

The Hy-Pro HP21L4-15WB has a 15µm micron rating with wire mesh filter media, rated at β200 per ISO 16889.

What are the dimensions of the Hy-Pro HP21L4-15WB?

The Hy-Pro HP21L4-15WB measures 1.735" OD, 1.025" ID, 4.45" overall length.

What seal material does the Hy-Pro HP21L4-15WB use?

The Hy-Pro HP21L4-15WB uses Nitrile (Buna) seals, rated for -45°F to 225°F.

What is the collapse pressure rating of the Hy-Pro HP21L4-15WB?

The Hy-Pro HP21L4-15WB has a collapse pressure rating of 3000 PSID. This indicates the maximum differential pressure the element can withstand without structural failure.

What is the operating temperature range for the Hy-Pro HP21L4-15WB?

The Hy-Pro HP21L4-15WB is rated for -45°F to 225°F, determined by its Nitrile (Buna) seals.

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