Sofima

Sofima CH804RD21

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Dimensional schematic

Micron: 18µm
Media: Stainless steel wire mesh
O.D.: 3.105"
I.D.: 1.705"
Length: 16"
Seal: Nitrile (Buna)
Collapse: 3000 PSID

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Part Number: CH804RD21
Manufacturer: Sofima

Sofima CH804RD21 specifications

The Sofima CH804RD21 is a 18µm stainless steel wire mesh filter element. It measures 3.105" OD x 1.705" ID x 16" long. Seals are Nitrile (Buna), rated for -45°F to 225°F. Collapse pressure rating is 3000 PSID. 2 verified cross-references are available from aftermarket manufacturers. Specifications verified. Last reviewed: June 2026

Performance

Micron Rating: 18µm
Media Type: Stainless steel wire mesh
Collapse Rating: 3000 PSID
Operating Temperature: -45°F to 225°F

Dimensions

O.A.L. (inches): 16"
O.D. (inches): 3.105"
I.D. (inches): 1.705"
Seal Material: Nitrile (Buna)

What replaces the Sofima CH804RD21?

2 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
HP61L16-18WB	Hy-Pro	Verified
SF9601-16-18UW	Swift Filters	Sourced

Get a quote on any of these →

Application & Compatibility

The SOFIMA CH804RD21 is designed for use in hydraulic and lubrication filtration systems. With a 18µm rating, this element is suitable for pump and component protection in industrial hydraulic circuits. 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 Sofima CH804RD21?

The Sofima CH804RD21 has a 18µm micron rating with stainless steel wire mesh filter media.

What are the dimensions of the Sofima CH804RD21?

The Sofima CH804RD21 measures 3.105" OD, 1.705" ID, 16" overall length.

What seal material does the Sofima CH804RD21 use?

The Sofima CH804RD21 uses Nitrile (Buna) seals, rated for -45°F to 225°F.

Is there a cross-reference for the Sofima CH804RD21?

Yes. There are 2 verified cross-references for the Sofima CH804RD21 from manufacturers including Hy-Pro, Swift Filters. Contact VerifiedFilters for specific part numbers and availability.

What is the collapse pressure rating of the Sofima CH804RD21?

The Sofima CH804RD21 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 Sofima CH804RD21?

The Sofima CH804RD21 is rated for -45°F to 225°F, determined by its Nitrile (Buna) seals.

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