Clever, a Spanish water technology company, has launched the Pure Slim, a compact ultrafiltration system designed for residential and commercial use, according to local media reports. The device uses advanced membrane technology to remove contaminants from water, offering a space-efficient alternative to traditional filtration units.
How the New System Works
The Pure Slim employs a hollow fiber ultrafiltration membrane with pore sizes as small as 0.01 microns, according to technical specifications provided by the company. This technology physically filters out bacteria, viruses, and particulate matter while retaining beneficial minerals. The system is designed to operate without chemicals, relying on pressure-driven separation rather than chemical coagulation or activated carbon.

Installation requires minimal plumbing modifications, with the unit fitting into standard cabinet spaces. A built-in pressure sensor alerts users to maintenance needs, such as membrane replacement, through an integrated display. The company claims the system can process up to 1,500 liters of water per day, sufficient for households with four to six occupants.
Market Position and Competition
The Pure Slim enters a market dominated by larger filtration systems from companies like Brita and Aquaphor, which typically require more installation space. Clever positioned the product as a solution for urban dwellers and small businesses with limited room for water treatment equipment. The company cited a 2023 industry report showing a 12% annual growth in demand for compact filtration solutions in Spain.
Competitors have yet to comment on the new offering. However, industry analysts note that ultrafiltration systems face challenges in price competitiveness compared to reverse osmosis units, which can be 20-30% cheaper but require more complex installation.
Regulatory and Environmental Context
The product complies with European Union water quality standards, including EN 1717:2022 for drinking water distribution systems. Clever highlighted that the Pure Slim reduces plastic waste by eliminating the need for bottled water in treated areas, though the company did not provide specific usage metrics.
Environmental groups have raised questions about the disposal of used membranes, which contain synthetic polymers. A spokesperson for Green Water Alliance stated, “While the system improves access to clean water, its long-term ecological impact depends on recycling programs for filtration components.”
What’s Next for the Product
Clever plans to expand the Pure Slim’s availability to Portugal and France by mid-2024, according to a company statement. The firm also announced pilot programs with municipal water authorities to test the system’s scalability for community-level applications. No details were provided about potential partnerships with utility providers or government subsidies.