Kirby 307389S Foam Sponge Filter for G3 G4 G5 G6 Ultimate G Diamond & Sentria
Kirby 307389S Foam Sponge Filter for G3 G4 G5 G6 Ultimate G Diamond & Sentria
The Kirby 307389S Foam Sponge Filter is a circular replacement foam filter designed to fit select Kirby vacuum cleaners. This sponge filter is commonly used on Kirby Generation Series and Sentria-style models, including G3, G4, G5, G6, Ultimate G, Diamond Edition, and Sentria vacuums.
This circular foam filter helps trap debris and protect compatible Kirby vacuum systems during normal use. If the original sponge filter is dirty, deteriorated, missing, torn, or no longer fitting properly, replacing it can help keep the vacuum operating as intended.
Product Features
- Replacement circular foam sponge filter
- Kirby part number: 307389S
- Also commonly referenced as: 307389
- Foam construction
- Circular filter design
- Fits select Kirby G-Series and Sentria vacuums
- Compatible with Kirby G3, G4, G5, G6, Ultimate G, Diamond Edition, and Sentria models
- Replacement for dirty, worn, torn, deteriorated, or missing sponge filters
Compatible Models May Include
- Kirby Generation 3, G3
- Kirby Generation 4, G4
- Kirby Generation 5, G5
- Kirby Generation 6, G6
- Kirby Ultimate G
- Kirby Diamond Edition
- Kirby Sentria
- Select Kirby vacuums using foam sponge filter 307389S / 307389
Common Reasons for Replacement
- Original foam filter is dirty or clogged
- Foam is torn, brittle, crumbling, or deteriorated
- Filter is missing from the vacuum or attachment system
- Foam no longer fits securely
- Routine Kirby vacuum maintenance is due
- Vacuum is being serviced, cleaned, or restored
Product Details
| Brand Compatibility | Kirby |
| Part Number | 307389S |
| Alternate Part Number | 307389 |
| Item Type | Foam sponge filter |
| Filter Shape | Circular |
| Filter Material | Foam |
| Common Fitment | Kirby G3, G4, G5, G6, Ultimate G, Diamond Edition, and Sentria vacuums |
| Application | Replacement circular sponge filter for compatible Kirby models |
Fitment Note
Please verify your Kirby vacuum model and original sponge filter style before ordering. Kirby models and accessory systems may use different filters depending on the model and attachment configuration. This listing is for Kirby 307389S, the circular foam sponge filter for compatible G3, G4, G5, G6, Ultimate G, Diamond Edition, and Sentria models.
Maintenance Note
Always unplug the vacuum before servicing or replacing filters. Inspect the filter area, airflow path, hose, nozzle, and related attachment parts during routine maintenance. Replace foam filters when they are dirty, torn, brittle, deteriorated, or no longer fitting securely.

