A solution for every use
Private and public swimming pools
Optimize water quality while reducing maintenance consumption and discharge.
Agricultural and industrial installations
Filter irrigation water or process flows with a reliable, uninterrupted medium.
Licensed deployment
Our technology is replicable and turnkey. Integrate a local unit in your territory.
Kind Of Blue is a French circular-economy innovator specializing in water filtration. We turn glass waste into a high-performance, cost-effective, and sustainable filtration solution. Our flagship product, SANDBAG®, is a filtration media capable of delivering up to 90% water savings in sand filter systems. After entering the leisure market (swimming pools) in 2024, we are expanding into agriculture (drip irrigation) from 2026, while also addressing industrial applications through our ongoing R&D programs. Kind Of Blue is the only company offering this glass-upcycling filtration model, protected by an international patent, a registered trademark, and recognized with multiple industry awards.
KOB rethinks water filtration
Our industrial solutions
Licensed deployment of production units for our products, in France and internationally.
Our products
Innovative water filtration solutions for irrigation, leisure and industry.
Research & Development
Development of new technical filtration solutions for water conservation.
Photo credit : IFTS
SANDBAG®
Next-generation filtration media
SANDBAG® is a ready-to-use filtration solution made from recycled glass and encapsulated in a recyclable textile bag made of recycled technical fibers. Compatible with all sand filters, it delivers ultra-high-performance filtration down to 12 microns, while dramatically reducing water consumption during backwashing. Designed to last over 7 years, SANDBAG® operates without clogging and without complex maintenance.
12 microns
Proven filtration fineness, superior to most conventional filtration media.
Only one backwash per year
Up to 90% water savings compared to traditional sand filters.
Over 7 years
Average lifespan of SANDBAG®, with no loss of performance.
KOB at the forefront of new models

Glass recycling
Rethinking a low-carbon recycling industrial model that can be replicated in all the world's major cities.

Water filtration
Reinventing systems to turn filtration into an opportunity to save water.

Waste valorization
Giving glass a second life, with strong commercial and environmental added value for a sustainable business model.

Circular economy
Mettre en œuvre un modèle économique à fort impact environnemental et social, impliquant les écosystèmes locaux à l’échelle mondiale.
Who we are
Kind Of Blue is a French industrial innovator driving the environmental transition. We turn recycled glass into high-performance filtration media, creating a new circular model to protect water — a critical global resource.
They talk about us
Find Kind Of Blue in both specialist and mainstream media, including L’Usine Nouvelle, BFM TV, La Tribune, RTL and more...
KOB raises €1.6 million to support its expansion and eco-responsible projects
Octobre 2024 KOB, entreprise industrielle à taille humaine, continue sa levée de fonds de 1,6 millions d’euros afin de poursuivre son développement commercial en France et à l’international. KOB s’engage à innover de façon harmonieuse, avec une vision à long terme, en...
KOB deploys its industrial glass valorization solution to reduce water consumption
Actualité du Flash Infos Nouvelle Aquitaine-Occitanie, 26 juillet 2024 Voir l'article
KOB deploys its industrial glass valorization solution
Juillet 2024 S’appliquant à la filtration des eaux de piscine, celle des eaux pour l’irrigation agricole ou encore au recyclage des eaux usées, KOB a développé, breveté et fabrique à partir de déchets de verre dans sa propre unité industrielle, la solution de charge...
Want to go further with us?
Are you a professional, a local authority, or an industrial player?
Let’s discuss the best way to integrate our solutions into your projects.
