Whether you’re filtering paints, oils, biodiesel, or waste vegetable oil, choosing the right 55 gallon drum strainer matters. This guide focuses on compact EZ strainers designed to fit on or inside standard 55-gallon drums, plus a drum funnel option for quick setups. The top picks below suit different filtering needs—from fine 100 micron to coarser 400 micron—helping you select the best fit for your project, budget, and workflow. The featured buyers are ideal for workshop hobbyists, small-batch operators, and maintenance teams seeking easy, washable, stackable strainers.
| Product | Micron | Why It’s a Fit | Best For |
|---|---|---|---|
| Duda Energy fs5:x5-100 | 100 | Best overall fine filtration in a durable 24″ insert | Fine solids, paint, biodiesel filtration |
| Duda Diesel fs55:200u | 200 | Better balance of flow and filtration | Mid-range filtration for oils and WVO |
| Duda Energy fs55:400u | 400 | Coarser filtration with high flow | Sludges, larger particulates |
| Duda Energy fs55:55u | 55 | Nice fine filter with compact microns | Primer filtration and cleaner pours |
| Duda Energy fs55:75u | 75 | Mid-fine option with solid filtration | Balanced filtration and flow |
Duda Energy fs5:x5-100 55 gal EZ Strainer Insert
Best for fine filtration in standard 55 gallon drums. The 100 micron Nmo nylon monofilament media provides absolute filtering, with a 24″ length designed to fit inside typical drum tops. It is washable and durable, and its 5″ height plus 22.5″ ID and 23″ OD ensure a snug fit in standard steel drums. This insert is ideal for users who need thorough filtration for water, paint components, biodiesel, WVO, or WMO. Caution: drum not included, so you’ll pair it with your existing drum.
Duda Diesel fs55:200u 55 gal EZ Strainer Insert
This 200 micron insert offers a middle-ground option for drum filtering. Its design mirrors the 100-micron model with the same top-fit inside 55 gallon drums, 5″ height, and identical dimensions, enabling easy swapping across micron sizes. Best for workflows that require quicker filtration while still removing moderate particulates. Best for: mid-range filtration in biodiesel, WVO, or mineral oil applications. Limitation: coarser than 100 micron models, so finer contaminants may pass through.
Duda Energy fs55:400u 55 gal EZ Strainer Insert
The 400 micron option is designed for high-flow filtration with larger particulates. It pairs well with pre-filter steps or substrates where initial debris removal is prioritized. Best for heavy sludge or viscous liquids where rapid throughput is required. Best for: rough filtration in bulk storage or transfer of oils and paints. Caution: not ideal for applications requiring very fine filtration, as particles under 400 microns may remain.
Duda Energy fs55:55u 55 gal EZ Strainer Insert
The 55 micron insert sits between the 100 and 75 micron options in filtration granularity. It’s a solid choice when moderate filtration is needed without sacrificing too much flow. Best for: priming before finer filtration stages or when filtering light emulsions. Limitation: may require a secondary stage for very fine separation.
Duda Energy fs55:75u 55 gal EZ Strainer Insert
The 75 micron option offers a balanced approach between fine filtration and flow. It’s best for general-purpose filtering where you want cleaner outputs than 200 micron but don’t need the tightest 100 micron filtration. Best for: routine filtering tasks in biodiesel, WVO, and paints. Caution: finer contaminants closer to 75 microns may remain compared to 100 micron units.
Additional Filter Solutions
In addition to the EZ Strainer Inserts, a compatible drum funnel with a brass screen can speed up filtration while reducing splashing. The Eagle 1662 Drum Funnel fits 55- and 30-gallon drums, with an 18″ diameter and 7″ height, designed to work with a 2″ NPT bung.
Buying Guide
- Filtration Micron Size: Choose based on the particles you need removed. 100 microns captures finer debris; 200–75 microns is a mid-range option; 400 microns handles larger particulates.
- Drum Compatibility: Ensure the insert fits a standard 55-gallon steel drum and that the drum is compatible with your filtration liquid (water, paint, biodiesel, WVO, WMO).
- Flow vs. Filtration: Finer micron sizes reduce flow. If throughput is critical, pair a coarser insert with a pre-filtration step.
- Maintenance: All inserts are washable and reusable. Regular washing extends life and maintains filtration efficiency.
- Combination Use: For best results, consider staged filtration—start with a coarser micron, then refine with a finer insert.
- Safety and Handling: When filtering flammable liquids, ensure proper ventilation and avoid static buildup by using grounded equipment and non-sparking tools.
Frequently Asked Questions
- What micron size should I start with for biodiesel? Start with 75–100 microns for initial filtration and refine as needed based on cleanliness requirements.
- Do these inserts require a drum? The inserts are designed to fit inside standard 55-gallon drums; drums are sold separately in most cases.
- Are the filters washable? Yes, the inserts are washable and reusable, enabling extended use with proper maintenance.
- Can I stack multiple strainers? Yes, stacking or swapping between micron sizes is common to tailor filtration steps to your workflow.
- Is a drum funnel necessary? A drum funnel is optional but helpful to reduce spillage during transfer and to accelerate filtration when pouring into drums.
- What liquids can be filtered with these inserts? They are suitable for water, paint, biodiesel, WVO, and WMO liquids within typical chemical compatibility ranges.
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