1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of your Air Filter Factory KA240 KitchenAire Aluminum Mesh Grease Range Hood Filter. Please read these instructions carefully before use to ensure optimal performance and longevity of your filter.

Figure 1: Air Filter Factory KA240 KitchenAire Aluminum Mesh Grease Range Hood Filter.
2. Product Features
- Part Number: KA240 Grease Wing Filter Replacement.
- Quality Construction: Proudly made in the USA from high-quality aluminum, featuring a thick, durable pad for superior grease filtration.
- Dimensions: Overall measurements are 15-3/4" x 16-3/4" x 3/8" with 3-1/4" wings and mount holes on the long side.
- Enhanced Filtration: Designed to prevent grease from collecting, reduce the risk of grease fires, and catch dust and particulates.

Figure 2: Benefits of replacing your range hood mesh filter.
3. Compatibility
This filter is compatible with the following models:
- KA130
- KA170
- KA190
- KA240
- LF16
- LFCU12
- LFCU13
- LFCU17
- LFCU19
Always measure your existing filter to confirm compatibility before ordering.
4. Measuring Your Filter
Accurate measurement of your existing filter is crucial to ensure a proper fit for your replacement. Measure the overall length, width, and thickness of your current filter from outside edge to outside edge.

Figure 3: Measuring the dimensions of a range hood filter.
For filters with a light lens, measure the visible portion of the lens separately if specified by your range hood manufacturer. The thickness of filters can vary slightly (e.g., 5/16" or 3/8"), but these are generally interchangeable in most applications.
Video 1: Detailed guide on how to accurately measure your range hood filter for replacement.
5. Installation
The grease mesh filter is designed to be installed underneath the range hood, positioned above the stove top with the mesh facing downward. Installation typically involves unclipping the old filter, sliding it out, and then inserting the new filter and securing it with the clips.
Video 2: Demonstration of replacing a KitchenAire Model KA240 Aluminum Range Filter.
6. Maintenance and Cleaning
Regular cleaning of your grease mesh filter is essential for maintaining its effectiveness and extending its lifespan. Filters are recommended to be hand washed using a mild dish detergent and warm water.
- Allow the filter to soak in hot water and mild dish detergent for approximately 1 hour.
- Using a light-bristled brush, gently scrub the filter's surface to remove accumulated grease and debris.
- Rinse thoroughly with clean water.
- Allow the filter to air dry completely before re-installing it into the range hood.

Figure 4: Steps for cleaning your mesh filter.
7. Specifications
| Feature | Detail |
|---|---|
| Brand | Air Filter Factory |
| Model Info | AFF240-W |
| Product Dimensions | 16.75"L x 15.75"W x 0.37"Th (Overall) |
| Item Weight | 13.6 ounces |
| Material Type | Aluminum |
| Compatible Device | Range Hood |
| Air Filter Construction | Panel |
| Number of Items | 1 |
8. Troubleshooting
If you experience issues with your range hood's performance after replacing the filter, consider the following:
- Poor Airflow: Ensure the filter is installed correctly and securely. Check for any obstructions in the range hood's ventilation system.
- Persistent Odors: If odors persist, verify that the filter is clean. If the filter is old or heavily soiled, it may need replacement.
- Filter Not Fitting: Double-check your measurements against the product specifications. Ensure you have the correct model for your range hood.
9. Warranty and Support
For warranty information or further support, please refer to the manufacturer's official website or contact their customer service directly. Keep your purchase receipt as proof of purchase.