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The Hoffman Enclosures Inc. part number 89134423R is a replacement filter kit designed for the HF04 series of fresh air enclosure cooling fans. This specific component provides IP54 and NEMA Type 12 protection against dust infiltration, ensuring environmental sealing for the associated fan units. The package contains six individual filters intended for maintenance or initial installation purposes.
Verify compatibility with existing HF04 fan models before procurement. Confirm that the required protection rating aligns with IP54/NEMA Type 12 specifications rather than higher ratings like IP55. Ensure the quantity of six filters meets the maintenance schedule requirements for the installed equipment.
Select this part specifically for HF04 series fans requiring dust-resistant filtration. It serves as a direct replacement for worn filters in existing installations. Do not substitute with generic filters as they may not meet the specific airflow and sealing characteristics required by the Hoffman cooling units.
This component belongs to the Hoffman Enclosures accessory line, specifically categorized under rack accessories and cooling system maintenance parts. It supports the operational longevity of the HF04 fan series by maintaining proper filtration integrity within the enclosure environment.
This item replaces standard filters on HF04 models. No alternative cross-reference part numbers are publicly documented for this specific configuration.

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