If you’re searching for a shop vac ash filter, you’re likely focused on safely capturing fine, hazardous ash without damaging your vacuum or risking health. The best options offer HEPA filtration or high-quality media that trap tiny particles while maintaining airflow. The 90340 Ash Filter Pack stands out for its versatility across different models, while the Fette HEPA Cartridge delivers superior filtration for sensitive environments. However, tradeoffs include higher costs for premium filters or compatibility limitations for some models. Continue reading to see how these options compare and find the right fit for your needs.
Complete the kit
Key Takeaways
- High-quality HEPA filters provide the best protection against fine ash particles but come at a higher price.
- Compatibility varies; selecting a filter designed for your specific vacuum model prevents performance issues.
- Bulk packs offer better value but may be less convenient for occasional use.
- Filters with activated carbon can help reduce odors from ash debris, useful in sensitive environments.
- Ease of installation and cleaning significantly impacts long-term usability and maintenance.
| 90340 Ash Filters Compatible with Shop Vac 4-16 Gallon and Vacmaster 5-20 Gallon Wet Dry Vacuums, 2-Pack | ![]() | Best Overall for Reusability and Versatility | Compatibility: Shop Vac 4-16 Gallon, Vacmaster 5-20 Gallon | Filter Type: Foam Sleeve Cartridge | Package Quantity: 2 Pack | VIEW ON AMAZON | See Our Full Breakdown |
| Fette Filter HEPA Cartridge Filter Replacement for Shop-Vac Ash Vacuum (Model CAV150, Part #9032933) | ![]() | Best for Fine Ash Filtration and Long-Lasting Performance | Compatible Models: Shop-Vac 9032933, 4041100, 4041200 | Part Number: 9032933 | Quantity: 1 | VIEW ON AMAZON | See Our Full Breakdown |
| Shop-Vac 9032933 Ash Vacuum HEPA Cartridge Filter, 1-Pack | ![]() | Best for Specific Ash Vacuum Compatibility | Use: Ash Vacuum | Filtration: HEPA | Material: Dry, Non-Hazardous Material | VIEW ON AMAZON | See Our Full Breakdown |
| Shop-Vac 90304/90344 Cartridge HEPA Filter for 5-16 Gallon Vacuums, 1 Pack | ![]() | Best for Versatile Wet/Dry Use with High-Efficiency Filtration | Size: 7-9/16 inches outer diameter, 6-1/2 inches height | Compatibility: Shop-Vac models 5760000, 5830000, etc. | Material: 4-layer HEPA paper | VIEW ON AMAZON | See Our Full Breakdown |
| Fette Filter HEPA Cartridge Filter Replacement Pack of 2 for Shop-Vac Ash Vacuum CleanStream 4041100 4041200 Model CAV150 Part # 9032933 | ![]() | Best Value Pack for High-Efficiency Filtration | Compatibility: Shop-Vac models using 9032933 | Quantity: 2 filters | Filtration Efficiency: Captures 99% | VIEW ON AMAZON | See Our Full Breakdown |
| HEPA Cartridge Filter Replacement Compatible with Shop-Vac Ash Vacuum CleanStream 4041100 4041200 Model CAV150 | ![]() | Best for Reusable, High-Efficiency Filtration | Compatible Models: Shop-Vac CAV150 | Part Number: 9032933 | Material: HEPA filter | VIEW ON AMAZON | See Our Full Breakdown |
| Ash Vacuum HEPA Cartridge Filter for Shop-Vac 9032933 | ![]() | Best for Cost-Effective, Reusable Ash Filtration | Compatibility: Shop-Vac 9032933 | Part Number: 9032933 | Material: HEPA filter | VIEW ON AMAZON | See Our Full Breakdown |
| Shop-Vac Cartridge Filter for 5-16 Gallon Wet/Dry Vacuums, 1 Pack | ![]() | Best for Versatile, High-Efficiency Dry & Wet Filtration | Outer diameter: 7-9/16 inches | Height: 6-7/8 inches | Compatibility: Most 5-16 gallon Shop-Vac wet/dry vacuums | VIEW ON AMAZON | See Our Full Breakdown |
| shop vac ash filter | Material | Compatibility | Reusable |
|---|---|---|---|
| 90340 Ash Filters Compatible w | — | Shop Vac 4-16 Gallon, Vacmaster 5-20 Gallon | — |
| Fette Filter HEPA Cartridge Fi | HEPA cartridge | — | — |
| Shop-Vac 9032933 Ash Vacuum HE | Dry, Non-Hazardous Material | — | — |
| Shop-Vac 90304/90344 Cartridge | 4-layer HEPA paper | Shop-Vac models 5760000, 5830000, etc. | Yes, washable and dryable |
| Fette Filter HEPA Cartridge Fi | HEPA cartridge | Shop-Vac models using 9032933 | — |
| HEPA Cartridge Filter Replacem | HEPA filter | — | Yes |
| Ash Vacuum HEPA Cartridge Filt | HEPA filter | Shop-Vac 9032933 | Yes |
| Shop-Vac Cartridge Filter for | Nanofiber filtration paper | Most 5-16 gallon Shop-Vac wet/dry vacuums | Yes |
More Details on Our Top Picks
90340 Ash Filters Compatible with Shop Vac 4-16 Gallon and Vacmaster 5-20 Gallon Wet Dry Vacuums, 2-Pack
This 2-pack of foam sleeve filters stands out for its reusability and ability to handle large debris while also filtering fine dust and odors. Compared to the HEPA filters like the Shop-Vac 9032933, these are more cost-effective over time since they can be washed and reused multiple times. However, their compatibility is limited to specific models, making them less suitable for other brands or larger capacities. The foam sleeves are easy to clean but may wear out faster with frequent washing, which could lead to reduced effectiveness. This pick makes the most sense for budget-conscious users who want straightforward maintenance and decent filtration performance without needing ultra-fine dust removal.
Pros:- Reusable and washable, saving money on replacements
- Effective at blocking large debris, odors, and fine dust
- Simple to clean with included brush
Cons:- Compatibility restricted to specific models, limiting flexibility
- Foam sleeves may degrade after frequent washing, reducing lifespan
Best for: Homeowners with 4-16 gallon wet/dry vacuums looking for cost-efficient, washable filters
Not ideal for: Users with multiple or different vacuum brands needing universal filters, due to limited compatibility
- Compatibility:Shop Vac 4-16 Gallon, Vacmaster 5-20 Gallon
- Filter Type:Foam Sleeve Cartridge
- Package Quantity:2 Pack
- Washable:Yes
- Reusability:Yes
Our verdict“This filter is best suited for budget-conscious users seeking durable, washable filters for compatible vacuums.”
Fette Filter HEPA Cartridge Filter Replacement for Shop-Vac Ash Vacuum (Model CAV150, Part #9032933)
This HEPA cartridge filter excels at trapping microscopic ash particles, making it ideal for users who need high-efficiency filtration, especially compared to the Shop-Vac 90304/90344 filters, which are larger and more suited to broader debris. Its durable construction ensures long-term performance, and the easy-to-install design simplifies maintenance. However, its specificity to certain Shop-Vac models limits its use for those with different brands or sizes. It’s a solid choice for those prioritizing fine ash removal and durability, though it may be overkill for casual or occasional cleanup tasks since it is designed for specific models.
Pros:- Highly effective at removing fine ash and dust
- Durable construction for repeated use
- Easy to install and replace
Cons:- Limited to specific vacuum models, reducing versatility
- Available only in single packs, increasing long-term costs
Best for: Users with Shop-Vac CAV150 or similar models needing high-efficiency, long-lasting ash filtration
Not ideal for: Owners of non-Shop-Vac vacuums or models outside the specified compatibility, who require a more universal solution
- Compatible Models:Shop-Vac 9032933, 4041100, 4041200
- Part Number:9032933
- Quantity:1
- Filtration Efficiency:High
- Material:HEPA cartridge
Our verdict“Ideal for users who need a durable, fine-particle HEPA filter for compatible Shop-Vac ash vacuums.”
Shop-Vac 9032933 Ash Vacuum HEPA Cartridge Filter, 1-Pack
This HEPA cartridge filter is designed specifically for Shop-Vac ash vacuums, providing reliable filtration of fine ash and particulates, similar to the Shop-Vac 90304/90344 filters, but with a focus on ash removal. Its HEPA media ensures that tiny particles are effectively captured, making it suitable for dry, non-hazardous ashes. Its main drawback is its limited compatibility — it only works with specific Shop-Vac models — and it requires replacement every few months for optimal performance. This filter makes sense for users who prioritize fine dust control and prefer a brand-specific accessory that’s easy to replace.
Pros:- Reliable HEPA filtration for fine ashes
- Designed specifically for ash vacuums
- Trusted brand with extensive product support
Cons:- Limited to specific vacuum models
- Only includes one filter, adding to ongoing costs
Best for: Owners of Shop-Vac ash vacuums needing proven HEPA filtration for fine ashes
Not ideal for: Users with variable or non-Shop-Vac vacuums, or those seeking a multi-pack for cost savings
- Use:Ash Vacuum
- Filtration:HEPA
- Material:Dry, Non-Hazardous Material
- Pack Size:1
Our verdict“Best suited for Shop-Vac owners who need dependable, brand-specific HEPA filtration for fine ash cleanup.”
Shop-Vac 90304/90344 Cartridge HEPA Filter for 5-16 Gallon Vacuums, 1 Pack
This 4-layer HEPA filter offers broad compatibility with 5-16 gallon Shop-Vac models, making it a flexible choice for multiple environments. It captures fine dust and allergens effectively, surpassing basic foam filters in filtration quality. Because it is washable and dryable, it reduces ongoing costs, and its high-efficiency design ensures a cleaner air environment during both wet and dry pickup. Compared with smaller, model-specific filters like the Shop-Vac 9032933, this filter provides a more universal fit, but its size restricts use to certain models, and it needs replacing every 4-5 months for optimal performance. It’s a good fit for users seeking reliable, reusable filtration across various tasks.
Pros:- High-efficiency 4-layer HEPA filtration captures fine particles
- Reusable and washable to cut costs
- Compatible with a wide range of 5-16 gallon models
Cons:- Requires replacement every few months for optimal results
- Size compatibility limited to certain models
Best for: Home or industrial users needing high-quality, washable filters for versatile wet and dry cleanup
Not ideal for: Those with smaller vacuums outside the specified size range or who prefer disposable filters for convenience
- Size:7-9/16 inches outer diameter, 6-1/2 inches height
- Compatibility:Shop-Vac models 5760000, 5830000, etc.
- Material:4-layer HEPA paper
- Reusable:Yes, washable and dryable
Our verdict“This filter suits users who want a durable, high-performing HEPA filter for versatile wet and dry vacuum applications.”
Fette Filter HEPA Cartridge Filter Replacement Pack of 2 for Shop-Vac Ash Vacuum CleanStream 4041100 4041200 Model CAV150 Part # 9032933
This pack of two HEPA filters provides excellent value for users needing high-efficiency filtration, capturing 99% of ash, dust, and debris. These filters are compatible with the same models as the Shop-Vac 9032933, making them a cost-effective choice for ongoing maintenance. Their washable, durable design ensures long-term use, but since they are model-specific, they won’t suit owners of different vacuum brands or wider model ranges. The pack offers a significant cost advantage over single filters, though it requires regular cleaning to maintain peak performance. This set appeals most to users with frequent ash cleanup who want dependable, high-filtration filters at a lower price per unit.
Pros:- Captures 99% of dust, ash, and debris
- Washable and durable for repeated use
- Cost-effective pack of 2 for ongoing maintenance
Cons:- Limited to specific models, reducing versatility
- Requires cleaning for optimal performance over time
Best for: Shop-Vac users needing multiple filters for regular ash and dust cleanup, seeking maximum value
Not ideal for: Owners of non-Shop-Vac vacuums or those who prefer disposable filters to avoid cleaning
- Compatibility:Shop-Vac models using 9032933
- Quantity:2 filters
- Filtration Efficiency:Captures 99%
- Material:HEPA cartridge
- Features:Washable, durable
Our verdict“This pack is ideal for high-volume users who want dependable, high-efficiency filtration at a better value.”
HEPA Cartridge Filter Replacement Compatible with Shop-Vac Ash Vacuum CleanStream 4041100 4041200 Model CAV150
This replacement HEPA cartridge stands out for its compatibility with specific Shop-Vac Ash Vacuum models, like the CAV150, and offers a washable design that emphasizes durability. Compared with the Fette Filter HEPA cartridge, this option is more straightforward to install and clean, but its compatibility is limited to certain models, meaning it’s not a universal fit. Its high-efficiency filtration captures fine ash, dust, and powders, making it ideal for users who prioritize long-term cost savings and eco-friendliness. The washable feature reduces waste and ongoing costs, but it requires thorough drying before reuse to maintain performance. This filter makes the most sense for those already owning compatible vacuums who want a reliable, reusable HEPA solution.
Pros:- High-efficiency HEPA filtration captures fine ash and dust
- Washable and durable for extended use
- Easy to install without tools
Cons:- Limited compatibility to specific models like CAV150
- Requires thorough drying before reuse to maintain effectiveness
Best for: Homeowners with Shop-Vac CAV150 or similar models seeking durable, washable HEPA filtration.
Not ideal for: Users with different Shop-Vac models or those needing a universal filter solution, as compatibility is limited.
- Compatible Models:Shop-Vac CAV150
- Part Number:9032933
- Material:HEPA filter
- Washable:Yes
- Reusable:Yes
- Installation:Tool-free
Our verdict“This filter is best for owners of compatible Shop-Vac models who want a cost-effective, reusable HEPA solution.”
Ash Vacuum HEPA Cartridge Filter for Shop-Vac 9032933
This HEPA cartridge filter is tailored for Shop-Vac ash vacuums, particularly models that use part 9032933. It excels in offering a reusable, washable design that reduces ongoing replacement costs, making it more eco-friendly compared to disposable filters like the Shop-Vac 90304/90344 cartridge. While it shares compatibility with the Fette Filter HEPA cartridge, its straightforward, tool-free installation makes it appealing for users who prioritize ease of use. However, it’s limited to specific models, so those with different vacuums will need alternatives. Its effective HEPA filtration ensures efficient ash removal, but thorough drying after washing is necessary to avoid mold or performance issues. This pick makes the most sense for budget-conscious users who need a dependable, eco-friendly filter for limited models.
Pros:- Reusable and washable, saving money
- Easy to install without tools
- Effective HEPA filtration for ash and fine dust
Cons:- Limited to specific Shop-Vac models
- Must dry thoroughly before reuse to prevent mold
Best for: Budget-conscious homeowners with Shop-Vac 9032933-compatible vacuums seeking a washable, reusable HEPA filter.
Not ideal for: Users with non-compatible models or those requiring a universal filter for multiple brands, as it fits only specific vacuums.
- Compatibility:Shop-Vac 9032933
- Part Number:9032933
- Material:HEPA filter
- Washable:Yes
- Reusable:Yes
Our verdict“This filter suits users who want a cost-effective, eco-friendly HEPA solution for compatible Shop-Vac models.”
Shop-Vac Cartridge Filter for 5-16 Gallon Wet/Dry Vacuums, 1 Pack
This cartridge filter is designed for most 5-16 gallon Shop-Vac wet/dry vacuums, standing out with its nanofiber material that offers up to five times the filtration efficiency of standard filters like the 90340. Its ability to handle both dry debris and wet messes makes it particularly versatile, especially for users who need a single filter solution for different tasks. Compared to the HEPA filters, this model is more suited for general debris but still captures fine dust effectively. Its reusable design and water-cleaning capability reduce long-term costs, but frequent replacements—every 4-5 months—are necessary for optimal performance. It’s ideal for homeowners who want a high-efficiency, multi-purpose filter that’s easy to maintain, though the specific size and compatibility limit its use to certain vacuums.
Pros:- High filtration efficiency—up to 5 times better
- Reusable and easy to clean with water
- Suitable for dry and wet applications
Cons:- Requires replacement every 4-5 months with regular use
- Limited compatibility to specific vacuum sizes and brands
Best for: Homeowners with 5-16 gallon Shop-Vac wet/dry vacuums needing a high-performance, reusable filter for both dry and wet debris.
Not ideal for: Users with smaller or larger vacuums outside the 5-16 gallon range or those seeking disposable filters for infrequent use.
- Outer diameter:7-9/16 inches
- Height:6-7/8 inches
- Compatibility:Most 5-16 gallon Shop-Vac wet/dry vacuums
- Material:Nanofiber filtration paper
- Reusable:Yes
- Application:Dry & wet use
Our verdict“This filter is best for users seeking a versatile, high-efficiency, reusable option for demanding dry and wet cleaning tasks.”

How We Picked
I evaluated each ash filter based on filtration efficiency, compatibility, durability, and ease of use. Priority was given to filters with HEPA ratings for superior particle capture, especially for hazardous ash. Cost-effectiveness was also considered, comparing bulk packs versus single units to determine overall value. Filters that fit a wide range of vacuum models or have simple installation processes ranked higher, as they appeal to both casual and professional users. The ranking reflects a balance of performance, price, and versatility relevant to typical shop vac owners dealing with ash removal tasks.| shop vac ash filter | Compatibility | Reusable |
|---|---|---|
| 90340 Ash Filters Compatible w | Shop Vac 4-16 Gallon, Vacmaster 5-20 Gallon | — |
| Fette Filter HEPA Cartridge Fi | — | — |
| Shop-Vac 9032933 Ash Vacuum HE | — | — |
| Shop-Vac 90304/90344 Cartridge | Shop-Vac models 5760000, 5830000, etc. | Yes, washable and dryable |
| Fette Filter HEPA Cartridge Fi | Shop-Vac models using 9032933 | — |
| HEPA Cartridge Filter Replacem | — | Yes |
| Ash Vacuum HEPA Cartridge Filt | Shop-Vac 9032933 | Yes |
| Shop-Vac Cartridge Filter for | Most 5-16 gallon Shop-Vac wet/dry vacuums | Yes |
Factors to Consider When Choosing Shop Vac Ash Filter
Choosing the right shop vac ash filter involves more than just matching a model number. You should consider filtration quality to ensure hazardous ash is contained, especially if you’re sensitive or have health concerns. Compatibility is critical—an ill-fitting filter reduces suction and can damage your vacuum. Durability and ease of maintenance also matter, as filters may need frequent replacement or cleaning. Finally, consider your typical use frequency and whether additional features like odor control or multi-pack discounts align with your needs.Filtration Efficiency and HEPA Ratings
High filtration efficiency, especially HEPA ratings, is vital when dealing with fine ash particles that can pose health risks. HEPA filters trap 99.97% of particles as small as 0.3 microns, making them ideal for hazardous ash. Cheaper filters may only capture larger debris, risking airborne dust escape. Choosing a filter with a proven HEPA rating ensures safety, but it often comes with a higher price. Balance your safety needs with your budget to select an appropriate level of filtration.
Compatibility and Fitment
Not all filters fit every vacuum model, so verifying compatibility is essential. Using an incompatible filter can lead to poor suction, filter damage, or even vacuum failure. Some filters are designed for broad model ranges, providing flexibility, while others are specific. Always check the product specifications and compare them to your vacuum’s make and model. Investing in a well-fitting filter prevents unnecessary replacements and maintains vacuum performance.
Durability and Maintenance
Durable filters that resist tearing or clogging save money over time by lasting longer between replacements. HEPA filters with sturdy frames and high-quality media are generally more durable. Ease of cleaning or replacing filters also influences overall maintenance effort. Some filters are washable, reducing replacement costs, while others require periodic disposal. Consider your willingness to perform maintenance when choosing between disposable and reusable options.
Additional Features and Value
Features like activated carbon layers can help neutralize odors, which is beneficial if ash smells or contains toxins. Bulk packs may offer better value for frequent use, but they might be less convenient for occasional cleaning. Some filters come pre-installed with easy-to-install designs, saving time and effort. Weighing these extras against your specific needs can improve long-term satisfaction and cost savings.
Cost and Long-Term Value
While premium filters cost more upfront, they often provide better filtration and durability, reducing replacement frequency. Conversely, cheaper filters might be tempting but could require frequent changes, adding to ongoing costs. Evaluate how often you’ll need to replace filters and whether investing in higher-quality options makes sense for your usage patterns. Ultimately, balancing initial expense with longevity and performance leads to better value.
Frequently Asked Questions
Can I use any HEPA filter for my shop vac ash collection?
No, not all HEPA filters fit every vacuum model. Compatibility is key because an ill-fitting filter can reduce suction and compromise filtration. Always verify the filter’s specifications against your vacuum’s make and model. Using the correct, manufacturer-recommended filter ensures optimal performance and safety, especially when dealing with hazardous ash particles.
Are reusable filters worth the extra cost?
Reusable filters can offer long-term savings and reduce waste, but they often require regular cleaning and maintenance. If you frequently vacuum ash or fine debris, a high-quality washable HEPA filter could be a good investment. However, for occasional use, disposable filters may be more convenient and cost-effective. Consider your cleaning frequency and willingness to perform maintenance before choosing reusable options.
Do activated carbon filters really make a difference for ash cleanup?
Yes, activated carbon filters can help neutralize odors from ash, especially if it contains toxins or has a strong smell. They add an extra layer of filtration that benefits sensitive environments or indoor use. However, they tend to be more expensive and may clog faster than standard HEPA filters, so evaluate whether odor control is a priority for your application.
How often should I replace my shop vac ash filter?
The replacement frequency depends on usage and ash type. In general, filters should be replaced when they become visibly clogged or if airflow significantly decreases. HEPA filters may last longer if cleaned properly, but always follow the manufacturer’s recommendations. Regular inspection ensures your vacuum maintains optimal performance and safety.
Is it better to buy filters in bulk or as single units?
Buying filters in bulk usually offers better per-unit value, especially if you frequently clean hazardous ash. Bulk packs reduce the need for repeated purchases and ensure you always have a fresh filter on hand. However, if your usage is sporadic, single units might be more practical to avoid unnecessary waste. Consider your cleaning habits and storage space when deciding.
Conclusion
For most users, the 90340 Ash Filter Pack provides a versatile, reliable solution combining value and performance, making it ideal for general cleanup. Those prioritizing safety and filtration quality should consider the Fette HEPA Cartridge, especially in environments with sensitive health concerns. If budget is a key factor, single-pack filters like the Shop-Vac 9032933 offer decent performance at a lower cost. Beginners or occasional users might find disposable filters sufficient, while professionals dealing with hazardous ash should invest in premium, HEPA-rated options. Ultimately, selecting the right filter depends on your specific needs, safety priorities, and budget constraints.










