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See Product Specifications
| Part Number: | 321-4 |
| Category: | Industrial Supplies |
| Subcategory: | HVAC - Air Filters |
| Manufacturer: | 3M |
| Packaging: | Bulk |
| Product Status: | Active |
| Type: | Pleated Filter |
| Material - Frame: | - |
| Media Delivery Type: | - |
| Merv Rating: | 5 |
| Depth (Inches): | 1 |
| Height (Inches): | 24 |
| Width (Inches): | 18 |
| Length (Inches): | - |
