
Retrofit filter granulate 70 µm – EU 2025/2365 | Winkler
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Retrofit Filter for Plastic Granules – 70 µm (Available Individually)
Economical & Sustainable Retrofitting in accordance with EU Regulation 2025/2365
Existing drainage systems do not need to be completely replaced to meet modern environmental requirements. Our retrofit filter with 70 µm filter fineness enables industrial companies to cost-effectively upgrade existing gully pots and catch basins to the standard of EU Regulation 2025/2365. As the core component of our specialized retention systems for plastic granules, we offer this high-performance filter individually to provide you with maximum flexibility for maintaining and equipping your plant premises.
This replacement filter is the ideal solution for companies that want to implement technical retention measures as part of Operation Clean Sweep and continue to use existing resources such as galvanized gully pots according to DIN 4052. It stops plastic pellets and fine abrasion directly where they originate. Especially in sensitive areas of the Chemicals & Raw Materials and Energy & Environment industries, this retrofit is a central component of environmental protection.
Focus on Flexibility: Individually Instead of in Packs
We have adapted our offering to meet your actual industrial needs:
- Available individually: Order exactly the quantity you need for your current replacement cycle.
- Universal fit: Available for all common bucket sizes from A4 to yard buckets.
- Cost reduction: The stable metal buckets are retained – only the filter medium is replaced.
- Sustainability: Less material usage through targeted replacement of the wear component, ideal for requirements in Transport & Logistics.
Secure Sealing through the Winkler Principle
A retrofit filter is only effective if it seals absolutely tightly. Our system prevents the dreaded "gush-through" of granules past the bucket wall:
- Integrated collar: The 70 µm fabric features a reinforced collar that is simply pulled over the rim of your existing bucket.
- Mechanical fixation: A robust, industrial drawstring secures the filter to the bucket body. This guarantees forced passage of water through the fabric.
- No bypass: By eliminating an emergency overflow, the retention function is 100% maintained – a decisive advantage for your legally compliant site security in Civil Engineering & Landscaping.
Comparison of Retention System Models
When ordering the retrofit filter, simply select the size that matches your existing bucket type:
| Model | Application Area | Bucket Type (DIN 4052) | Special Feature |
|---|---|---|---|
| A4 | Street drain (high) | Form A (Ø 450 mm) | Maximum capacity |
| B1 | Street drain (shallow) | Form B (Ø 450 mm) | Low installation depth |
| C3 | Special catch basin | Form C (Ø 300 mm) | Compact industrial drains |
| D1 | Compact drain | Form D (Ø 300 mm) | Flat & narrow |
| Yard Bucket | Yard & point drainage | Square / Round small | Production-near areas |
| Retrofit Filter | All models | Universal fabric | Individually & flexibly retrofittable |
Technical Details: Retrofit Filter 70 µm
| Material | High-performance polymer (chemical-, UV- and oil-resistant) |
| Filter fineness | 70 µm (Micron) for secure microplastic retention |
| Fastening | Integrated collar with reinforced industrial drawstring |
| Compatibility | Suitable for gully pots according to DIN 4052 (Form A, B, C, D) & yard buckets |
| Scope of delivery | 1x replacement filter 70 µm (individual) for retrofitting |
Note: Since we manufacture the filters individually for your needs, please allow for the corresponding delivery time for industrial production.
Expert Advice for Your Retrofit
Do you need support in determining the correct filter size for your existing buckets? Our experts for expert consultation on granule retention or general consultation for industrial filter technology will be happy to help you modernize your existing system in a legally compliant and environmentally friendly manner.
FAQ – Retrofit filter for granule retention 70 µm
Important information on replacing and retrofitting your granulate filter systems.












