High-quality fine filter bags for your cistern – directly from the specialist

Water is a precious resource. The use of rainwater in the home and garden is becoming increasingly important in times of climate change. The WINKLER fine filter bag retains even the finest particles. Combined with high permeability, it can handle the large volume flows that frequently occur during heavy rainfall events.

The composite material, specially developed for this application and consisting of a carrier material and fine filter fabric, guarantees optimal filtration with maximum water permeability. The filter bag can be disassembled, cleaned, and reassembled in a very short time.

Thanks to the surrounding straps (6 pieces, 25 mm wide) and the 80 mm edge reinforcement , the filter sits securely and adapts flexibly to the cistern inlet. Depending on the model, the filter is available in various sizes – suitable from DN325 to DN800 or even as a custom-made product.

Unlike felt filter bags, the WINKLER fine filter bag does not clog. Sustainability is very important to us!

Why a cistern filter is so important

A professional cistern filter ensures that only purified rainwater enters the tank. This has several advantages:

• Protects your cistern from contamination and sludge deposits.

• Extends the lifespan of pumps and pipes

• Improves water quality for garden, household and technology

• Reduces the maintenance required for your rainwater harvesting system

Our rainwater filters for cisterns are easy to retrofit, simple to clean and available in various sizes – suitable for almost any system.

Easy handling and quick cleaning

The six tabs hold the filter bag securely in place, even under heavy water loads. For cleaning, the tabs are unclipped from the pre-installed carabiners, the filter bag is emptied, backflushed from the outside, and then reinstalled. A few simple steps, easy and highly efficient cleaning. Just as you'd want it.

The WINKLER fine filter bag for cistern inlet: All advantages at a glance

• Variable: The WINKLER fine filter bag is available in various sizes – here in the shop in five standard sizes, and also custom-made to your specifications.
• Sustainable: The fine filter bag is made of an abrasion-resistant polyester composite material. Easy to clean. Long-lasting. This ensures that rainwater is reliably and safely filtered cleanly over a long period of time.
• Practical: Using this filter bag is simple, efficient, and extremely straightforward. Therefore, you don't need to invest much time or energy to benefit from all the advantages of this filter bag.

WINKLER fine filter bag for cistern inlet: Technical details

The best result comes from the best advice.

That's why we'd be happy to discuss your requirements and wishes with you personally. We offer tailored advice on custom-made solutions according to your specifications. Call us or send us an email to book a consultation with our filter experts. We look forward to being your reliable partner.

Buy cistern filters now – for clean rainwater from the very first drop.

Browse our selection and find the perfect rainwater filter bag for your cistern . We're happy to answer any questions you may have – personally, competently, and independently of any manufacturer.

Make the most of the rain – with clean solutions from the filter bag expert.

Frequently Asked Questions (FAQ)

How often should the cistern filter be cleaned?

Usually every 4-8 weeks, more frequently if heavily soiled.

Can I use the filter in any cistern?

Yes, the models cover the common sizes DN325 to DN800. Special sizes are also possible.

What does a filter fineness of 70 µm mean?

The filter retains particles from a size of 0.07 mm, thus ensuring significantly clearer water.