Karcher Genuine Flat Pleated Filter for Various NT Models

Product Overview

The Kärcher Flat Pleated Filter (Model 6.904-367.0) is a high‑performance paper filter designed for both wet and dry vacuum cleaners. Manufactured in Germany, this component delivers reliable filtration while maintaining low airflow resistance.

Key Specifications

• Manufacturer Part Number: 6.904-367.0
• Country of Origin: Germany (DE)
• Material: Paper with cellulose fibers for optimal dust capture.
• Dust Class: M – suitable for general household and light industrial use.
• Weight: 0.22 kg per unit.

Compatibility

This filter is engineered to fit a wide range of Kärcher vacuum models, including:

• NT series – NT25/1, NT30/1, NT35/1, NT45/1, NT55/1
• NT Eco variants – NT361, NT561, NT611
• Professional and industrial units such as KM70/30 C Bp Adv.

Design Features

The flat pleated construction maximizes surface area without increasing the filter’s footprint. This design ensures:

• High airflow efficiency: Minimal pressure drop for consistent suction power.
• Extended lifespan: Durable paper fibers resist clogging, extending service intervals.
• Easy installation: Snap‑in or slide‑in mechanisms compatible with most Kärcher housings.

Performance Characteristics

When installed in a wet/dry vacuum system, the filter captures fine particulate matter and liquid droplets effectively. Its cellulose composition provides excellent moisture absorption while maintaining structural integrity under variable suction pressures.

Airflow Resistance

Measured at standard operating conditions, the filter exhibits an airflow resistance of 0.15 Pa/cm², ensuring that vacuum performance remains uncompromised during prolonged use.

Filtration Efficiency

Laboratory tests confirm a filtration efficiency of:

• ≥ 99% for particles >5 µm.
• ≥ 95% for particles between 1–5 µm.

Installation Guide

1. Turn off the vacuum and disconnect any power source.
2. Remove the existing filter by sliding it out of its housing.
3. Align the new flat pleated filter with the mounting tabs.
4. Insert firmly until it clicks into place.
5. Re‑attach any covers or seals, then restore power and test suction.

Maintenance Tips

• Inspect the filter monthly for visible wear or clogging.
• Replace after 6–12 months of regular use, depending on dust load.
• Avoid using chemical cleaners that could degrade paper fibers.

Why Choose This Filter?

The Kärcher Flat Pleated Filter (6.904-367.0) combines German engineering precision with a design tailored for versatility across wet and dry vacuum applications. Its lightweight construction, high filtration efficiency, and broad compatibility make it an essential component for maintaining optimal suction performance and air quality in both residential and commercial settings.

Environmental Considerations

Made from recyclable paper materials, this filter supports sustainable cleaning practices. Upon reaching the end of its life cycle, it can be disposed of in accordance with local recycling regulations, reducing environmental impact compared to synthetic alternatives.

Conclusion

For users seeking a reliable, high‑performance filtration solution for Kärcher vacuum systems, the Flat Pleated Paper Filter (Model 6.904-367.0) delivers exceptional dust capture, low airflow resistance, and easy integration across multiple models—all while maintaining a lightweight profile of just 0.22 kg.