Monday, November 9, 2026 · Customer reviews of US businesses
The Fair Hearing score
Excellent
12 reviews
RAUfilter - Koi Pond Filter | Drum filter | Bio FilterSelect a line to read only those reviews.
Honesty, pricing, process and quality scores appear once 5 customers have rated them.
Filters FactoryWelcome to RauFilter – Your Partner in Superior Water Filtration SolutionsAt RauFilter, we specialize in designing and delivering advanced water filtration systems that cater to a wide range of applications, including home ponds, koi ponds, aquariums, aquaculture farms, and aquaponics systems. Whether you’re a professional in the industry or a passionate hobbyist, our products ensure clean, safe, and healthy water environments worldwide.Why Choose RauFilter?Exceptional Durability: Made from robust polypropylene plastic and stainless-steel components, ensuring long-lasting performance and absolute safety for aquatic life.Innovative Technology: Featuring rotary drum filters (RDFs) and biofilters that provide efficient and eco-friendly water purification.Economical and Reliable: No need to replace filter meshes, minimizing operational costs.Easy to Use: Intuitive design simplifies installation, maintenance, and operation.Customizable Solutions: Tailor-made filters to meet unique customer requirements.Direct Factory Pricing: Competitive prices without compromising quality.
RAUfilter - Koi Pond Filter | Drum filter | Bio Filter (raufilter.com) has 12 customer reviews on The Fair Hearing, with an average rating of 5.0 out of 5.
Showing 12 reviews with 5 stars · Clear filters
Good company, excellent and reliable product.
By Periklis A.
Response from RAUfilter - Koi Pond Filter | Drum filter | Bio Filter· Sep 27, 2026
Thank you for your kind words! We’re very happy to hear that you’re satisfied with our product and service. Your trust in RAUfilter means a lot to us. We truly appreciate your support! 🙏💧🐟
Good company. High- quality filter. I bought a drum filter 50 for my Koi pond. I am very pleased.
By Thi Luong N.
Response from RAUfilter - Koi Pond Filter | Drum filter | Bio Filter· Aug 26, 2026
Thank you very much for your kind review! 🙏 We’re happy to hear that you’re satisfied with our reliable pond filtration products and the quality of RAUfilter equipment. 🐟💧 We truly appreciate your trust and support. We’ll continue working hard to provide high-quality, reliable filtration systems for koi ponds and ponds. Thank you for choosing RAUfilter! 💙
I ordered the 2600 gph model, has a couple of niggles but the customer service from this company is beat I've seen in a long while, step by step diagnosis and personalised help is very rare these days, price also is so cheap but not the quality, would of paid 4 times the amount in the UK, I had a problem with fines in my 3000l sleeper pond, I run a 3 barrel filter and the drum has nailed it, No more fines just crystal water, unit is virtually silent , comes in a well packaged box and no custom charges, recommend seller Rau ..
By Steve H.
Response from RAUfilter - Koi Pond Filter | Drum filter | Bio Filter· Aug 26, 2026
Thank you so much for taking the time to share such a detailed review! 🙏 We’re really happy to hear that your 2600 GPH drum filter has made such a difference to your 3,000 L koi pond and helped eliminate fine particles for crystal-clear water. 🐟💧 We’re also especially pleased that you were happy with our customer support. We believe that good service doesn’t stop after the filter is delivered — we’re always here to help with installation, troubleshooting, and getting the best performance from your pond filtration system. Thank you for trusting RAUfilter and for recommending us to other koi keepers in the UK and around the world! 🌍 We really appreciate your support. 💙
I’m using for one year now the 50mc Drum filter from RAU. Verry good product. all technical support were great. Planning a new pond and looking for new products from RAU😎
By Andrei
Response from RAUfilter - Koi Pond Filter | Drum filter | Bio Filter· Aug 26, 2026
Thank you so much for your great review! 🙏😎 We’re delighted to hear that your 50-micron drum filter has been working so well for you over the past year. Reliable mechanical filtration and excellent water quality are exactly what we aim for with every RAUfilter system. 🐟💧 It’s also great to hear that our technical support was helpful. We truly appreciate your trust in RAUfilter, and we’re excited to be part of your new pond project! Thank you for choosing RAUfilter — we look forward to helping you with your next koi pond filtration system! 🌿🐟
